A lathe feeding and discharging interface tray mechanism suitable for an automated production line

Abstract

The present application relates to the field of automation production, especially to a lathe feeding and discharging interface tray mechanism suitable for an automatic production line.The tray mechanism comprises a lathe chuck, a jaw connected with the lathe chuck, a jaw clamping surface provided with a comb tooth, a tray connecting shaft, an outer circle of the tray connecting shaft provided with a comb tooth groove, a tray, a tray bottom embedded with the tray connecting shaft, a side surface embedded with a grabbing pin and screwed with an intelligent identification module, a tray center provided with an inner hole, an upper surface of the tray provided with a main body comb tooth groove and a T-shaped groove, a tray base finger provided with a comb tooth on a side surface, a trapezoidal adjusting screw top end embedded in a trapezoidal adjusting screw slot and sleeved with a T-shaped screw hole of the tray base finger, and a tray top jaw installed above the tray base finger.The present application can realize high-precision positioning, interface standardization, hand-automatic quick switching, quick clamping, simple structure, high interchangeability of the tray and meet the use of various parts in actual production.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of automation production, and particularly relates to a lathe feeding and discharging interface tray mechanism suitable for an automated production line. BACKGROUND

[0002] In modern production, the requirement for flexible manufacturing is higher and higher, and enterprises often hope that similar parts with small batch and many types can be produced by fewer manufacturing units, so as to save the equipment, manpower, materials and site of manufacturing enterprises, and even the products of multi-variety and small batch can be concentrated in a machining center or workshop to realize, which requires manufacturing enterprises to continuously accelerate and improve the construction of their intelligent manufacturing platform. For the intelligent manufacturing of machining, at present, most enterprises adopt the mode of robot feeding and discharging to realize it, and the implementation mode can be one robot corresponding to one machine tool, or one robot corresponding to multiple machine tools. For the mode of one robot corresponding to multiple machine tools, in addition to the form of reasonable distribution of machine tool layout with fixed robot, the mode of ground rail or truss robot can also be adopted, that is, a seventh axis is added, so that the robot can move along the seventh axis and perform feeding and discharging at the corresponding machine tool position.

[0003] However, no matter which form is adopted, the key link of robot feeding and discharging cannot be avoided. For multi-variety and small batch feeding and discharging work, since the structure form and size of various workpieces are different, it is not realistic to directly clamp the products for circulation operation, and therefore a tray is often used as an intermediate to realize automatic production based on tray clamping. This mode often only needs manual clamping of workpieces to be machined on a standard tray, and then the robot transfers the tray to a warehouse or a production, cleaning and measuring unit to realize production management of various workpieces. At present, this mode is often applied in the case of multi-station vertical machining center, and is less applied in the case of multi-station lathe, especially horizontal lathe.

[0004] This is because both the robot's repeatability and the machine tool's automatic clamping accuracy affect the final machining result. For vertical machining centers or vertical lathes, the workpiece can easily fall onto the plane of the clamping mechanism inside the machine tool by its own weight (these clamping mechanisms are usually automated zero-point systems, pneumatic or hydraulic vises, or chucks). Thus, the axial and radial accuracy of the workpiece can be guaranteed through the self-centering clamping of the automated fixture. However, for horizontal lathes, only the radial positioning of the workpiece can be achieved through the self-centering function of the chuck; axial positioning requires auxiliary technical means. Currently, the most common methods are: first, using a dedicated chuck with axial positioning capabilities, but these chucks are often very expensive and require interface matching with the lathe, while also requiring replacement of the lathe's standard chuck, resulting in unnecessary waste; second, adding force sensors and flexible tooling to the robot's end effector, but this method is often very expensive and unreliable, and the products on the market are basically designed for effective loads of less than 100kg. There is no very suitable solution for heavy-load machining. Thirdly, the machine tool can be automated by utilizing its own devices, such as the tailstock jack, to add the function of axially clamping the workpiece. This method is relatively reliable, but it is difficult to implement and requires customized development by professional technicians. It may not be possible to implement this method for some lathes with low automation levels (such as when the jack is hydraulically driven).

[0005] Therefore, for automated loading and unloading of lathes, there is an urgent need for a structure with a universal interface that can achieve high-precision positioning of the pallet clamping (mainly ensuring axial positioning accuracy) by changing the jaws on the lathe chuck, and can guarantee rapid switching between manual and automatic operation. The pallet structure can adapt to manual clamping of turned workpieces, can quickly align, can ensure coaxiality with the pallet interface, has the function of clamping the center and periphery of the workpiece, facilitates clamping by the robot's end effector, and has the ability to communicate with RFID. Summary of the Invention

[0006] The technical problem to be solved by this invention is to provide a lathe loading and unloading interface tray mechanism suitable for automated production lines. It can achieve high-precision positioning with one clamping, and the interface is standardized to meet the needs of manual and automatic quick switching and quick clamping in actual production. The mechanism has a simple structure, high tray interchangeability, and can meet the needs of various parts.

[0007] This invention provides a lathe loading and unloading interface tray mechanism suitable for automated production lines, comprising:

[0008] Lathe chuck;

[0009] A claw is connected with the chuck of the lathe, and is driven by the chuck to achieve radial movement to clamp the tray connecting shaft; the clamping surface of the claw is provided with comb teeth;

[0010] The tray connecting shaft is provided with comb tooth grooves on the outer circumference, which are matched with the comb teeth;

[0011] The tray is connected with the tray connecting shaft through screws, and the bottom of the tray is provided with a first positioning groove, so that the tray connecting shaft is embedded; the side of the tray is provided with a second positioning groove, so that the grabbing pin is embedded;

[0012] The tray is provided with an inner hole interface in the center;

[0013] The upper surface of the tray is provided with a main comb tooth groove and a T-shaped groove outwardly and radially with the inner hole as the center, and the two are arranged at intervals; one end of the main comb tooth groove close to the inner hole interface is a trapezoidal adjustment screw slot;

[0014] The tray base finger is provided with comb teeth on the side, which are matched with the main comb tooth groove;

[0015] The top end of the trapezoidal adjustment screw is embedded in the trapezoidal adjustment screw slot, and at the same time, is sleeved with the T-shaped threaded hole in the center of the tray base finger, so as to drive the tray base finger to smoothly slide in the tray comb tooth groove at C by rotating the trapezoidal adjustment screw;

[0016] The intelligent identification module is screwed on the side of the tray;

[0017] The tray top claw is installed above the tray base finger, and the positioning of the tray top claw and the tray base finger is completed through the keys and the left and right side surfaces of the tray top claw.

[0018] Preferably, the auxiliary tool is further included, which is connected to the inner hole interface of the tray.

[0019] Preferably, the auxiliary tool includes a typical part C1, which is coaxial with the tray connecting shaft and is clamped, and a pressing plate type tool is installed in the T-shaped groove to press the typical part C1.

[0020] Preferably, the typical part C1 is adjusted to be coaxial with the tray connecting shaft and clamped by driving the tray base finger and the tray top claw to move through the trapezoidal adjustment screw.

[0021] Preferably, the auxiliary tool includes a turning tool, and the bottom of the turning tool is provided with a positioning boss matched with the inner hole interface of the tray;

[0022] The typical part C2 is clamped on the turning tool, and the typical part C2 is clamped by driving the tray base finger and the tray top claw to move through the trapezoidal adjustment screw.

[0023] Preferably, the bottom positioning pin ring is used in cooperation with the line auxiliary workbench to adjust the clamping accuracy of the parts and the tray as a whole, and is connected with the tray connecting shaft through the bottom positioning pin ring mounting screw.

[0024] Preferably, the tray base is designed to slide smoothly in the main comb slot, and the assembly gap is not greater than 0.01 mm.

[0025] Preferably, the inner hole interface of the tray is uniformly designed.

[0026] Preferably, the side surface of the tray is provided with four grabbing pins.

[0027] Preferably, the upper surface of the tray is provided with four main comb slots.

[0028] Compared with the prior art, the lathe feeding and discharging interface tray mechanism suitable for the automatic production line has the advantages of simple structure, no need to modify the original lathe, low manufacturing cost, high precision positioning of the tray, high interchangeability, compatibility with multiple products, quick manual-automatic switching, quick clamping of parts, greatly improved production efficiency and machine tool utilization rate, and reduced consumption of manpower, material resources and financial resources, thereby providing a powerful guarantee for the intelligent manufacturing production line robot to automatically feed and discharge the lathe. BRIEF DESCRIPTION OF DRAWINGS

[0029] Figure 1 An exploded view of the lathe feeding and discharging interface tray mechanism of the present application is shown;

[0030] Figure 2 A sectional view of the lathe feeding and discharging interface tray mechanism of the present application is shown;

[0031] Figure 3 A top view of the lathe feeding and discharging interface tray mechanism of the present application is shown;

[0032] Figure 4 An isometric view of the lathe feeding and discharging interface tray mechanism of the present application is shown;

[0033] Figure 5 An enlarged view of the claw and tray connecting shaft is shown;

[0034] Figure 6 A schematic view of an auxiliary tool is shown;

[0035] Figure 7 A sectional view of another auxiliary tool is shown;

[0036] In the figure: 1. lathe chuck, 2. jaw, 3. bottom positioning pin ring mounting screw, 4. bottom positioning pin ring, 5. screw, 6. tray connecting shaft, 7. grabbing pin, 8. grabbing pin mounting screw, 9. RFID module, 10. tray, 11. trapezoidal adjusting screw, 12. tray base finger, 13. tray top jaw, 14. key, 15. press plate tooling, 16. typical part C1, 17. lathe tooling, 18. typical part C2.

[0037] In addition, A is the tray connecting shaft comb tooth; B is the tray main body T-shaped groove; C is the tray main body comb tooth groove; D is the tray main body inner hole interface; E is the connecting threaded hole; F is the trapezoidal adjusting screw clamping groove. DETAILED DESCRIPTION

[0038] In order to further understand the present application, the embodiments of the present application are described below in conjunction with examples, but it should be understood that these descriptions are only for further illustrating the features and advantages of the present application, and are not limitations of the present application.

[0039] The embodiments of the present application disclose a lathe feeding and discharging interface tray mechanism suitable for an automatic production line, as shown in the figure, comprising: Figures 1-4

[0040] A lathe chuck 1;

[0041] A jaw 2 connected with the lathe chuck 1 and driven by the lathe chuck 1 to realize radial motion for clamping the tray connecting shaft 6; the jaw 2 clamping surface is provided with a comb tooth;

[0042] A tray connecting shaft 6, the outer circumference of which is processed with a comb tooth groove matched with the comb tooth;

[0043] A tray 10 connected with the tray connecting shaft 6 through a screw 5, the bottom of the tray 10 is processed with a first positioning groove, so that the tray connecting shaft 6 is embedded; the side of the tray 10 is processed with a second positioning groove, so that the grabbing pin 7 is embedded;

[0044] The tray 10 is provided with an inner hole interface in the center;

[0045] The upper surface of the tray 10 is provided with a main body comb tooth groove and a T-shaped groove outwardly radiating from the inner hole as the center, and the two are arranged in a spaced manner; one end of the main body comb tooth groove close to the inner hole interface is a trapezoidal adjusting screw clamping groove;

[0046] A tray base finger 12, the side of which is provided with a comb tooth matched with the main body comb tooth groove;

[0047] ​The top end of the trapezoidal adjusting screw 11 is embedded in the trapezoidal adjusting screw slot and is sleeved with the T-shaped threaded hole in the center of the tray base finger 12, so that the tray base finger 12 is driven to smoothly slide in the tray comb slot by rotating the trapezoidal adjusting screw 12;

[0048] The intelligent identification module 9 is screwed on the side of the tray 10;

[0049] The tray top claw 13 is installed above the tray base finger 12, and the positioning of the tray top claw 13 and the tray base finger 12 is completed by the keys 14 and the left and right abutting surfaces of the tray top claw 13.

[0050] In the present application, the chuck claw with a comb structure is used, the comb groove matching the self-made chuck claw comb is processed on the outer circle of the tray connecting shaft, and in the clamping process of the chuck claw, the comb of the chuck claw and the tray connecting shaft is attached, so that the automatic adjustment and positioning of the tray are realized at one time.

[0051] The tray is processed with a comb slot, the chuck base finger used in cooperation with the tray is processed with a corresponding comb slot, the chuck base finger is installed in the comb slot of the tray main body, and a T-shaped threaded hole is processed in the center of the chuck base finger, the base finger is adjusted by rotating the tray finger adjusting screw, so that the stability of the tray base finger is greatly ensured, and the time for manually clamping and aligning parts is saved. In addition, the tray base finger has high interchangeability, and is connected with the tray finger through keys and bolts, and according to different processing technologies of different parts, the tray finger can be quickly replaced to meet the use demand. The tray center is provided with an inner hole, which is convenient for positioning of auxiliary tools, and special parts can be clamped by center pressing, and a T-shaped groove is arranged on the tray main body, and the flexible installation of the pressing plate can be realized according to the use demand.

[0052] The following will be described in detail according to the order of the lathe feeding and discharging interface tray mechanism suitable for an automatic production line.

[0053] The lathe chuck 1 is a standard lathe chuck, in manual operation, the ordinary claw is connected with the chuck through a screw, the chuck drives the claw to move radially to clamp the part, and the part is processed. In automatic operation, the ordinary claw needs to be removed and replaced with the new claw 2 in the present application.

[0054] The claw 2 is connected with the lathe chuck 1 through a screw, is driven by the lathe chuck 1 to realize radial movement, and is used to clamp the tray connecting shaft 6. Figure 5 As shown in the figure, the clamping surface of the claw 2 is provided with a comb;

[0055] The tray connecting shaft 6 is clamped with a comb groove matching the comb on the outer circle, so that the claw 2 and the tray connecting shaft 6 are perfectly matched and closely attached when the chuck is clamped, the automatic tray axial and radial accurate adjustment is realized through the guidance of multiple comb inclined surfaces, and the accurate positioning at one time is ensured.

[0056] The tray 10 is connected with the tray connecting shaft 6 through the screw 5, the bottom of the tray 10 is processed with the first positioning groove, so that the tray connecting shaft 6 is embedded, so as to ensure the assembly accuracy; the side of the tray 10 is processed with the second positioning groove, so that the grabbing pin 7 is embedded, and the grabbing pin 7 is coupled with the tray main body 10 through the grabbing pin mounting screw 8, and the grabbing pin 7 cooperates with the robot end clamping mechanism to grab and carry the tray. The grabbing pin 7 is embedded in the second positioning groove, so as to ensure the assembly accuracy and meet the smooth grabbing of the robot end clamping mechanism. Optionally, four grabbing pins 7 are arranged on the side of the tray 10.

[0057] Preferably, the bottom positioning pin ring 4 is further included, the bottom positioning pin ring 4 is used in cooperation with the line-out auxiliary workbench for positioning, and is used for adjusting the clamping accuracy of the parts and the tray as a whole, and is coupled with the tray connecting shaft 6 through the bottom positioning pin ring mounting screw 3.

[0058] The tray 10 is provided with the inner hole interface in the center; the inner hole interface of the tray is uniformly designed, so as to facilitate the replacement of the auxiliary tool connected with the inner buckle interface.

[0059] As shown in Figure 3 The upper surface of the tray 10 is provided with the main body comb tooth groove as shown in the figure C and the T-shaped groove as shown in B with the inner hole as the center and radiated outward, and the two are arranged at intervals; one end of the main body comb tooth groove close to the inner hole interface is the trapezoidal adjusting screw rod clamping groove; optionally, the upper surface of the tray 10 is provided with four main body comb tooth grooves, which are uniformly distributed.

[0060] The tray base finger 12 is provided with the comb tooth on the side, which cooperates with the main body comb tooth groove;

[0061] The main body comb tooth groove at C is completely consistent with the comb tooth on the tray base finger 12, so as to ensure that the tray base finger 12 can smoothly slide in the main body comb tooth groove at C after high-precision assembly, and the assembly gap is not greater than 0.01 mm.

[0062] The top end of the trapezoidal adjusting screw rod 11 is embedded in the trapezoidal adjusting screw rod clamping groove, and at the same time, is sleeved with the T-shaped threaded hole in the center of the tray base finger 12, so as to drive the tray base finger 12 to smoothly slide in the tray comb tooth groove by rotating the trapezoidal adjusting screw rod 12;

[0063] The intelligent identification module (RFID module) 9 is screwed on the side of the tray 10, and is used for recording information and communicating the tray with the intelligent manufacturing system, so as to facilitate the system to control the processing progress in real time, read the tray state, make correct judgment, and ensure the normal operation of the production line.

[0064] The pallet top claw 13 is installed above the pallet base finger 12. The pallet top claw 13 and the pallet base finger 12 are positioned by the key 14 and the left and right abutments of the pallet top claw 13. In addition, the interface of this design is uniform, and different specifications of pallet top claw 13 can be quickly replaced according to the processing requirements.

[0065] The pallet top claw 13 is installed on the pallet base finger 12 by connecting bolts. The key 14 ensures the radial positioning of the pallet top claw 13 and the pallet base finger 12. At the same time, the left and right abutment surfaces at the bottom of the pallet top claw 13 cooperate with the pallet base finger 12 to lock together and complete the circumferential positioning of the pallet top claw 13 and the pallet base finger 12.

[0066] Meanwhile, in this invention, the pallet can be used without the auxiliary tooling installed. Installing the auxiliary tooling is a usage method under special requirements, and there are more than two types of auxiliary tooling.

[0067] The auxiliary tooling is connected to the tray 10.

[0068] The auxiliary tooling can take many forms, and optionally includes the following two:

[0069] The first type is as follows Figure 6 As shown, the auxiliary tooling includes a typical part C1 16, which is coaxial with and clamped to the pallet connecting shaft 6. The pressure plate tooling 15 is installed in the T-slot to press the typical part C1 16.

[0070] The typical part C116 is adjusted to be coaxial with and clamped to the tray connecting shaft 6 by rotating the trapezoidal adjusting screw 11 to drive the tray base finger 12 and the tray top claw 13. The purpose is to ensure that the typical part C116 is coaxial with the chuck shaft when the chuck clamps the tray connecting shaft 6.

[0071] The second type is as follows Figure 7 As shown, the auxiliary tooling includes: a machining tooling 17, the bottom of which is machined with a positioning boss that mates with the inner hole interface of the tray 10, and is connected to the threaded hole at point E by screws;

[0072] Typical part C2 18 is clamped on the machining fixture. At the same time, the pallet base finger 12 and pallet top claw 13 are moved by rotating the trapezoidal adjusting screw 11 to adjust and clamp the typical part C2, thus quickly completing the clamping.

[0073] The standardized design of the inner hole interface of the pallet body at point 10D enables rapid tooling switching. Simultaneously, based on the required fitting accuracy, it ensures the coaxiality of the typical clamped part C2 18 with the pallet connecting shaft 6 and the chuck shaft. Furthermore, the design of the T-slot at point B and the inner hole interface at point D allows for the combined use of various types of tooling and facilitates rapid tooling switching.

[0074] The above description of the embodiments is only used to help understand the method of the present application and its core idea. It should be noted that for those skilled in the art, some improvements and modifications can be made to the present application without departing from the principles of the present application, and these improvements and modifications also fall within the protection scope of the claims of the present application.

[0075] The above description of the disclosed embodiments enables a person skilled in the art to implement or use the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to these embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A lathe infeed and outfeed interface tray mechanism suitable for use in an automated production line, characterized by, It comprises: A lathe chuck; A claw connected with the lathe chuck, driven by the lathe chuck to achieve radial movement to clamp the tray connecting shaft, and the claw clamping surface is provided with comb teeth; A tray connecting shaft, the outer circumference of which is processed with comb tooth grooves matched with the comb teeth; A tray connected with the tray connecting shaft through screws, the bottom of which is processed with a first positioning groove so that the tray connecting shaft is embedded, and the side of which is processed with a second positioning groove so that a grabbing pin is embedded; The tray is provided with an inner hole interface in the center; The upper surface of the tray is provided with a main comb tooth groove and a T-shaped groove with the inner hole as the center and outwardly radiating, and the two are arranged at intervals; the end of the main comb tooth groove close to the inner hole interface is a trapezoidal adjustment screw slot; The tray base finger is provided with comb teeth on the side to cooperate with the main comb tooth groove; The top end of the trapezoidal adjustment screw is embedded in the trapezoidal adjustment screw slot, and at the same time, it is sleeved with the T-shaped threaded hole in the center of the tray base finger, so as to drive the tray base finger to smoothly slide in the main comb tooth groove of the tray body by rotating the trapezoidal adjustment screw; The intelligent identification module is screwed on the side of the tray; The tray top claw is installed above the tray base finger, and the positioning of the tray top claw and the tray base finger is completed through the key and the left and right abutting surfaces of the tray top claw; The tray base finger smoothly slides in the main comb tooth groove, and the assembly gap is not greater than 0.01mm; The bottom positioning pin ring is used in cooperation with the line outer auxiliary workbench for positioning, and is used to adjust the clamping accuracy of the parts and the whole tray, and is connected with the tray connecting shaft through the bottom positioning pin ring mounting screw.

2. The lathe infeed / outfeed interface tray mechanism suitable for use in an automated production line of claim 1, wherein, It also comprises an auxiliary tool, which is connected to the inner hole interface of the tray.

3. The lathe infeed / outfeed interface tray mechanism suitable for use in an automated production line of claim 2, wherein, The auxiliary tool comprises a typical part C1 coaxial with the tray connecting shaft and clamped, and a pressing plate type tool is installed in the T-shaped groove to press the typical part C1.

4. The lathe infeed / outfeed interface tray mechanism suitable for use in an automated production line of claim 3, wherein, The typical part C1 is adjusted to be coaxial with the tray connecting shaft and clamped by rotating the trapezoidal adjustment screw to drive the tray base finger and the tray top claw to move.

5. The lathe infeed / outfeed interface tray mechanism suitable for use in an automated production line of claim 2, wherein, The auxiliary tool comprises a turning tool, and the bottom of the turning tool is processed with a positioning boss matched with the inner hole interface of the tray; The typical part C2 is clamped on the turning tool, and the typical part C2 is adjusted and clamped by rotating the trapezoidal adjustment screw to drive the tray base finger and the tray top claw to move.

6. The lathe infeed / outfeed interface tray mechanism suitable for use in an automated production line of claim 1, wherein, The inner hole interface of the tray is uniformly designed.

7. The lathe infeed / outfeed interface tray mechanism suitable for use in an automated production line of claim 1, wherein, Four grabbing pins are arranged on the side of the tray.

8. The lathe infeed / outfeed interface tray mechanism suitable for use in an automated production line of claim 1, wherein, Four main comb tooth grooves are arranged on the upper surface of the tray.

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