Four-axis numerical control pass-type nut tapping machine

Abstract

The utility model discloses a four-axis numerical control pass-type nut tapping machine which comprises a machine box, a control system is installed in the machine box, and a working table used for machining nuts is arranged on the upper end face of the machine box. The more than one nut tapping mechanism is mounted on the working table side by side, and a plurality of nuts are automatically tapped at the same time through the more than one nut tapping mechanism; the feeding system is mounted at the top position of the working table of the case and is used for continuously feeding nuts to each nut tapping mechanism; and the material collecting system is mounted at the discharging ends of the more than one nut tapping mechanism and is used for collecting the tapped finished nuts. According to the automatic tapping machine, automatic tapping of a plurality of nuts can be achieved, the whole process is automatic, manual participation is reduced, the working efficiency is greatly improved, and the product percent of pass is improved.

Description

Technical Field

[0001] The utility model relates to the field of nut processing, in particular to a four-axis numerically controlled through-type nut tapping machine. Background Art

[0002] In modern manufacturing, nut tapping is a basic and critical process. Traditional tapping machines generally have several problems, including low automation, manual intervention, low tapping efficiency and high defect rate. These problems are mainly due to the design and functional limitations of traditional tapping equipment.

[0003] Traditional tapping machines generally use a single-station operation and can only process one nut at a time. The operator needs to manually place the nut and manually remove it after the tapping is completed, which not only consumes a lot of manpower but also greatly reduces production efficiency. In addition, due to the lack of an effective automatic detection and control mechanism, the nuts are prone to misoperation or improper equipment adjustment during the tapping process, resulting in a high defective rate of finished nuts. These defective products are not identified and removed in time, and often require additional quality inspection processes, increasing production costs and time. Utility Model Content

[0004] In order to solve the above problems, the utility model provides a four-axis CNC through-type nut tapping machine, which can effectively solve the deficiencies in the prior art.

[0005] The utility model is realized by the following technical scheme: a four-axis CNC through-type nut tapping machine, comprising:

[0006] A chassis, a control system is installed inside the chassis, and an upper end surface of the chassis is provided with a work surface for processing nuts;

[0007] More than one nut tapping mechanism, wherein the more than one nut tapping mechanism is installed side by side on the work surface, and multiple nuts are automatically tapped simultaneously by the more than one nut tapping mechanism;

[0008] A feeding system, installed on the top of the work surface of the chassis, for continuously feeding nuts to each nut tapping mechanism;

[0009] The material collection system is installed at the discharge end of one or more nut tapping mechanisms to collect the finished nuts after tapping.

[0010] As a preferred technical solution, each nut tapping mechanism includes:

[0011] Servo screw drive mechanism;

[0012] A mounting plate, slidably mounted on the servo screw drive mechanism;

[0013] A cylinder is fixedly mounted on the mounting plate, and a driving head is mounted on the cylinder rod of the cylinder;

[0014] Two clamping jaws, the middle position of the two clamping jaws is rotatably mounted on the mounting plate through an axle pin, and a clamping end is formed on the side of the clamping jaw away from the cylinder, and a driving end is formed on the side close to the cylinder, and the driving head is located at the driving end of the two clamping jaws;

[0015] An end face positioning block is fixedly mounted on the mounting plate, and the end face positioning block is arranged on a side close to the clamping end of the clamping claw;

[0016] The two sides of the nut are clamped by the clamping claws, and one end face of the nut is positioned and supported by the end face positioning block;

[0017] The tapping head is arranged facing the vertical nut, and the tapping head is controlled by a tapping drive system to automatically tap the clamped nut.

[0018] As a preferred technical solution, the clamping ends of the clamping jaws respectively form a clamping positioning cavity. When the two clamping jaws are clamped, the nut is clamped in the clamping positioning cavity between the two clamping jaws.

[0019] As a preferred technical solution, a fixing rod is provided on the top of each driving end of the two clamping jaws, a tension spring is provided between the two fixing rods, and the two sides of the tension spring are respectively connected to the fixing rods, so that the clamping jaws are automatically opened by the tension spring.

[0020] As a preferred technical solution, a driving contact rod is also provided on one side of the driving end of the two clamping jaws. The head of the driving contact rod is spherical, and there is an inclined contact surface on both sides of the driving head. The head of the driving contact rod contacts the inclined contact surface.

[0021] As a preferred technical solution, the servo screw drive mechanism includes:

[0022] Two guide rails are fixedly mounted on the work surface, a slider is arranged at the bottom of the mounting plate at a position corresponding to the guide rail, and the slider is slidably mounted on the guide rail;

[0023] The lead screw is installed at the output end of the servo motor. A nut is arranged at the bottom of the mounting plate, and the nut is installed on the lead screw.

[0024] As a preferred technical solution, an avoidance hole is provided on one side of the nut hole of the end face positioning block corresponding to the nut, and when the tapping head taps the nut, the tapping head extends into the avoidance hole.

[0025] As a preferred technical solution, the end face positioning block is provided with a chip removal groove, the bottom of which is open and is used to discharge waste after tapping.

[0026] As a preferred technical solution, the feeding system includes a plurality of vibrating loading trays, and the nuts to be processed are placed in the vibrating loading trays.

[0027] As a preferred technical solution, it also includes a material discharging rack, wherein the material discharging rack has a material feeding channel, and the nuts to be processed are transported to the nut tapping mechanism through the material feeding channel for clamping and processing;

[0028] The feed inlet end of the feed channel corresponds to the discharge port of the vibrating loading tray, and the discharge port end of the feed channel faces the clamping port position of the nut tapping mechanism.

[0029] The beneficial effects of the utility model are as follows: the utility model adopts a multi-station automatic tapping mechanism, which can perform tapping operations on multiple nuts at the same time. This through-type design combined with an automatic feeding and receiving system greatly improves the operating speed and continuous production capacity of nut tapping. Compared with traditional single-station tapping equipment, the device significantly enhances the efficiency of the production line by reducing the need for manual operation and improving the parallel processing capacity of tapping. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0031] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0032] Figure 2 It is a structural schematic diagram of a nut tapping mechanism of the utility model;

[0033] Figure 3 It is a schematic diagram of the bottom structure of the nut tapping mechanism of the utility model;

[0034] Figure 4 It is a partial structural schematic diagram of the utility model;

[0035] Description of reference numerals:

[0036] 1. Chassis; 2. Vibrating loading tray; 3. Nut tapping mechanism; 4. Discharging rack; 5. Work table; 31. Servo motor; 32. Cylinder; 33. Tension spring; 34. Driving contact rod; 35. Clamping claw; 36. Axis pin; 37. Clamping positioning cavity; 38. Nut; 39. End face positioning block; 40. Driving head; 41. Guide rail; 42. Inclined contact surface; 43. Fixed rod; 44. Mounting plate; 45. Screw; 46. Chip groove; 100. Tapping head. DETAILED DESCRIPTION

[0037] All features disclosed in this specification, or steps in all methods or processes disclosed, except mutually exclusive features and / or steps, can be combined in any manner.

[0038] Any feature disclosed in this specification (including any additional claims, abstract and drawings), unless otherwise stated, may be replaced by other equivalent or alternative features with similar purposes. That is, unless otherwise stated, each feature is only an example of a series of equivalent or similar features.

[0039] like Figure 1 As shown, a four-axis CNC through-type nut 38 tapping machine of the utility model comprises a chassis 1, a control system is installed inside the chassis 1, and a working table 5 for processing nuts 38 is provided on the upper end surface of the chassis 1;

[0040] More than one nut 38 tapping mechanism 3, wherein the more than one nut 38 tapping mechanism 3 is installed side by side on the work surface 5, and the more than one nut 38 tapping mechanism 3 is used to automatically tap multiple nuts 38 at the same time;

[0041] A feeding system, installed at the top of the work surface 5 of the chassis 1, for continuously feeding the nut 38 to the tapping mechanism 3 of each nut 38;

[0042] The material collection system is installed at the discharging end of one or more nut 38 tapping mechanisms 3 and is used to collect the finished nuts 38 after tapping.

[0043] like Figure 2 and Figure 3 As shown, each nut 38 tapping mechanism 3 includes:

[0044] Servo screw 45 driving mechanism;

[0045] A mounting plate 44 is slidably mounted on the servo screw 45 driving mechanism;

[0046] The cylinder 32 is fixedly mounted on the mounting plate 44, and a driving head 40 is mounted on the cylinder 32 rod of the cylinder 32;

[0047] Two clamping jaws 35, the middle position of the two clamping jaws 35 is rotatably mounted on the mounting plate 44 through an axle pin 36, and a clamping end is formed on the side of the clamping jaws 35 away from the cylinder 32, and a driving end is formed on the side close to the cylinder 32, and the driving head 40 is located at the driving end of the two clamping jaws 35;

[0048] The end surface positioning block 39 is fixedly mounted on the mounting plate 44, and the end surface positioning block 39 is arranged on a side close to the clamping end of the clamping jaw 35;

[0049] The two sides of the nut 38 are clamped by the clamping jaws 35, and one end face of the nut 38 is positioned and supported by the end face positioning block 39;

[0050] The tapping head 100 is arranged facing the vertical nut 38 , and the tapping head 100 is controlled by a tapping drive system to automatically tap the clamped nut 38 .

[0051] like Figure 2 As shown, the clamping ends of the clamping jaws 35 respectively form a clamping positioning cavity 37. When the two clamping jaws 35 are clamped, the nut 38 is located in the clamping positioning cavity 37 between the two clamping jaws 35 and clamped.

[0052] A fixing rod 43 is disposed on the top of the driving end of each of the two clamping jaws 35 , a tension spring 33 is disposed between the two fixing rods 43 , and both sides of the tension spring 33 are respectively connected to the fixing rod 43 , so that the clamping jaws 35 are automatically opened by the tension spring 33 .

[0053] A driving contact rod 34 is also provided on one side of the driving end of the two clamping jaws 35 . The head of the driving contact rod 34 is spherical. There is an inclined contact surface 42 on both sides of the driving head 40 . The head of the driving contact rod 34 contacts the inclined contact surface 42 .

[0054] like Figure 3 As shown, the servo screw 45 driving mechanism includes:

[0055] Two guide rails 41 are fixedly mounted on the work surface 5. A slider is provided at the bottom of the mounting plate 44 corresponding to the position of the guide rail 41. The slider is slidably mounted on the guide rail 41.

[0056] The lead screw 45 is mounted on the output end of the servo motor 31 . A nut 38 is disposed at the bottom of the mounting plate 44 , and the nut 38 is mounted on the lead screw 45 .

[0057] like Figure 4 As shown, an avoidance hole is provided on one side of the nut 38 hole of the end face positioning block 39 corresponding to the nut 38. When the tapping head 100 taps the nut 38, the tapping head 100 extends into the avoidance hole.

[0058] The end face positioning block 39 has a chip removal groove 46 therein, and the bottom of the chip removal groove 46 is open for discharging waste after tapping.

[0059] like Figure 1As shown, the feeding system includes a plurality of vibrating loading trays 2, in which the nuts 38 to be processed are placed, and also includes a discharge rack 4, in which a feeding channel is provided, and the nuts 38 to be processed are transported to the nut 38 tapping mechanism 3 through the feeding channel for clamping processing;

[0060] The feed port end of the feed channel corresponds to the discharge port of the vibrating loading plate 2 , and the discharge port end of the feed channel faces the clamping port position of the nut 38 tapping mechanism 3 .

[0061] When feeding is required, the nut 38 is placed in the vibrating feeding plate 2, and the material is fed by vibration. The material enters the clamping port of the nut 38 tapping mechanism 3 through the feeding channel. At this time, the cylinder 32 is ejected, driving the driving head 40 to be ejected. The driving head 40 uses the inclined contact surfaces 42 on both sides to squeeze the driving contact rod 34 with a ball head, so that the driving ends of the two clamping jaws 35 will be stretched outward, and the clamping ends of the clamping jaws 35 can clamp the nut 38 located at the clamping port. At this time, as long as the cylinder 32 remains in the ejected state, the clamping action of the clamping jaws 35 can be realized;

[0062] At this time, the tapping head 100 moves toward the nut 38 to be processed, and the tapping head 100 is used to complete the tapping action of the nut 38. After the tapping is completed, the tapping head 100 retreats, and the debris in the tapping process is discharged to the outside through the chip groove 46. After the tapping is completed, the tapping head 100 retreats, and then the cylinder 32 is controlled to retract. Under the action of the tension spring 33, the two jaws 35 open, the nut 38 falls, the new nut 38 to be processed is dropped, and the jaws 35 are clamped, and the processing is repeated in this way.

[0063] The system control part, the system of the utility model uses CNC technology to control the nut 38 to automatically fall into the storage box at the rear after tapping is completed. The control mechanism is designed based on the pitch and tooth height of the thread. Taking the bolt specification as an example, mn8*1.25mn, when the screw rotates 180 degrees, it corresponds to a tooth height of 1.25mm, which is suitable for a nut 38 with a diameter of 8mm and a pitch of 1.25mm.

[0064] The system automatically identifies the torque value after completion through preset parameters. Assuming that the torque exceeds 30 Nm, the nut 38 will be automatically determined as a defective product. The system records and identifies which nuts 38 are defective products, and then screens and removes them, which not only improves production efficiency, but also ensures product quality standards through precise control and screening mechanisms. The technical solution of the system control part is not specifically described in this embodiment;

[0065] The utility model mainly adopts a multi-station automatic tapping mechanism, which can perform tapping operations on multiple nuts 38 at the same time. This through-type design combined with an automatic feeding and receiving system greatly improves the operating speed and continuous production capacity of the nut 38 tapping. Compared with traditional single-station tapping equipment, this device significantly enhances the efficiency of the production line by reducing the need for manual operation and improving the parallel processing capacity of tapping.

[0066] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any changes or substitutions that are not conceived through creative work should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope defined in the claims.

Claims

1. A four-axis CNC through-type nut (38) tapping machine, characterized in that: include: A chassis (1), a control system is installed inside the chassis (1), and an upper end surface of the chassis (1) is provided with a work surface (5) for processing nuts (38); More than one nut (38) tapping mechanism (3), the more than one nut (38) tapping mechanism (3) being installed side by side on the work surface (5), and the more than one nut (38) tapping mechanism (3) being used to automatically tap multiple nuts (38) simultaneously; A feeding system, installed at the top of the work surface (5) of the chassis (1), for continuously feeding nuts (38) to each nut (38) tapping mechanism (3); The material collecting system is installed at the discharging end of one or more nut (38) tapping mechanisms (3) and is used to collect the finished nuts (38) after tapping.

2. The four-axis CNC through-type nut (38) tapping machine according to claim 1, characterized in that: Each nut (38) tapping mechanism (3) comprises: Servo screw (45) driving mechanism; A mounting plate (44) slidably mounted on the servo screw (45) driving mechanism; A cylinder (32) is fixedly mounted on the mounting plate (44), and a driving head (40) is mounted on the cylinder (32) rod of the cylinder (32); Two clamping jaws (35), the middle position of the two clamping jaws (35) is rotatably mounted on the mounting plate (44) through an axle pin (36), and a clamping end is formed on the side of the clamping jaws (35) away from the cylinder (32), and a driving end is formed on the side close to the cylinder (32), and the driving head (40) is located at the driving end of the two clamping jaws (35); An end face positioning block (39) is fixedly mounted on the mounting plate (44), and the end face positioning block (39) is arranged on a side close to the clamping end of the clamping claw (35); The clamping jaws (35) clamp two sides of the nut (38), and one end face of the nut (38) is positioned and supported by the end face positioning block (39); The tapping head (100) is arranged facing the vertical nut (38), and the tapping head (100) is controlled by a tapping drive system to automatically tap the clamped nut (38).

3. The four-axis CNC through-type nut (38) tapping machine according to claim 2, characterized in that: The clamping ends of the clamping jaws (35) respectively form a clamping positioning cavity (37). When the two clamping jaws (35) are clamped, the nut (38) is located in the clamping positioning cavity (37) between the two clamping jaws (35) and clamped.

4. The four-axis CNC through-type nut (38) tapping machine according to claim 2, characterized in that: A fixing rod (43) is respectively arranged at the top of the driving end of the two clamping jaws (35), a tension spring (33) is arranged between the two fixing rods (43), and the two sides of the tension spring (33) are respectively connected to the fixing rod (43), and the clamping jaws (35) are automatically opened by the tension spring (33).

5. The four-axis CNC through-type nut (38) tapping machine according to claim 2, characterized in that: A driving contact rod (34) is also provided on one side of the driving end of the two clamping jaws (35), the head of the driving contact rod (34) is spherical, and both sides of the driving head (40) are respectively provided with an inclined contact surface (42), and the head of the driving contact rod (34) contacts the inclined contact surface (42).

6. The four-axis CNC through-type nut (38) tapping machine according to claim 2, characterized in that: The servo screw (45) driving mechanism comprises: Two guide rails (41) are fixedly mounted on the work surface (5); a slider is provided at the bottom of the mounting plate (44) at a position corresponding to the guide rail (41); the slider is slidably mounted on the guide rail (41); A screw rod (45) is mounted on the output end of the servo motor (31). A nut (38) is arranged at the bottom of the mounting plate (44), and the nut (38) is mounted on the screw rod (45).

7. The four-axis CNC through-type nut (38) tapping machine according to claim 2, characterized in that: The end surface positioning block (39) is provided with an avoidance hole on one side of the nut (38) hole corresponding to the nut (38); when the tapping head (100) taps the nut (38), the tapping head (100) extends into the avoidance hole.

8. The four-axis CNC through-type nut (38) tapping machine according to claim 2, characterized in that: The end surface positioning block (39) has a chip removal groove (46) therein, and the bottom of the chip removal groove (46) is open and is used to discharge waste material after tapping.

9. The four-axis CNC through-type nut (38) tapping machine according to claim 1, characterized in that: The feeding system comprises a plurality of vibrating feeding trays (2), in which nuts (38) to be processed are placed.

10. The four-axis CNC through-type nut (38) tapping machine according to claim 9, characterized in that: It also includes a material discharging rack (4), wherein the material discharging rack (4) has a material feeding channel, and the nuts (38) to be processed are transported to the nut (38) tapping mechanism (3) through the material feeding channel for clamping and processing; The feed port end of the feed channel corresponds to the discharge port of the vibrating loading plate (2), and the discharge port end of the feed channel faces the clamping port position of the nut (38) tapping mechanism (3).

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