A fully automatic nut tapping machine

Abstract

The present invention belongs to the technical field of nut tapping, and in particular relates to a fully automatic nut tapping machine, comprising: a tapping frame; a clamping mechanism, which is arranged in the middle of the tapping frame; a tapping mechanism, which is arranged on the tapping frame and located on one side of the clamping mechanism; a positioning mechanism, which is arranged on the tapping frame and located on the other side of the clamping mechanism; a feeding mechanism, which is arranged on the tapping frame and located on one side below the tapping mechanism, and the feeding mechanism and the positioning mechanism are symmetrical to each other; and a feeding mechanism, which is arranged in the middle of the positioning mechanism and the tapping mechanism, and is arranged toward the direction of the clamping mechanism and is in a perpendicular relationship with the feeding mechanism.

Description

Technical Field

[0001] The invention belongs to the technical field of nut tapping, and in particular relates to a full-automatic nut tapping machine. Background Art

[0002] A nut tapping machine is a mechanical processing equipment that processes internal threads, screws or threads on the inner side of holes of various specifications of parts such as nuts, flanges, etc. through holes or blind holes; a nut tapping machine is also called a nut tapping machine.

[0003] Most nut tapping machines use a tapping mechanism in conjunction with a clamp to tap the nuts. However, in the nut tapping production, manual loading and unloading and manual clamping of the nuts are required, which increases labor costs and reduces processing efficiency. Summary of the invention

[0004] The purpose of the present invention is to provide a nut tapping machine with a simple structure, automatic loading and unloading, and automatic clamping in order to solve the above-mentioned technical problems.

[0005] In view of this, the present invention provides a fully automatic nut tapping machine, comprising:

[0006] Tapping rack;

[0007] A clamping mechanism, which is arranged in the middle of the tapping machine frame;

[0008] A tapping mechanism, which is arranged on the tapping machine frame and located on one side of the clamping mechanism;

[0009] A positioning mechanism, which is arranged on the tapping machine frame and is located on the other side of the clamping mechanism;

[0010] A feeding mechanism, which is arranged on the tapping machine frame and is located on one side below the tapping mechanism, and the feeding mechanism and the positioning mechanism are symmetrical to each other;

[0011] The unloading mechanism is arranged in the middle of the positioning mechanism and the tapping mechanism, and is arranged toward the clamping mechanism and is in a perpendicular relationship with the loading mechanism.

[0012] In the above technical solution, further, the feeding mechanism includes:

[0013] A feeding guide rail, which is arranged on the tapping machine frame;

[0014] A feeding drive cylinder, which is fixedly arranged on the tapping machine frame, with the driving end of the feeding drive cylinder arranged toward the clamping mechanism, and the feeding drive cylinder is located on one side of the feeding guide rail;

[0015] A feeding push block, which is fixedly arranged on the driving end of the feeding drive cylinder;

[0016] The feeding guide rails include:

[0017] A feed guide portion, the feed guide portion extends from the outer side of the tapping frame to the inner side of the upper end of the tapping frame, and the feed guide portion and the feeding mechanism are parallel to each other;

[0018] A feeding guide portion, wherein the feeding guide portion and the feeding guide portion are perpendicular to each other, and the feeding guide portion extends toward one side of the clamping mechanism;

[0019] The loading drive cylinder is located on one side of the loading guide part and is in the same straight line with the loading guide part. A feeding port for a loading push block to enter and pass through is provided at the connection between the loading guide part and the feeding guide part, and the cross-sections of the feeding guide part and the loading guide part are both in the shape of a U-shaped with a groove on the upper part.

[0020] In the above technical solution, further, the material discharging mechanism includes:

[0021] A material unloading guide rail, which is arranged in the middle of the tapping machine frame and located on one side of the clamping mechanism;

[0022] The unloading drive cylinder is arranged in the middle of the tapping machine frame and on the other side of the clamping mechanism, and the unloading guide rail and the unloading drive cylinder are symmetrical to each other and are respectively in a vertical relationship with the loading mechanism;

[0023] A material unloading push block, which is fixedly arranged on the driving end of the material unloading drive cylinder;

[0024] The unloading guide rail, unloading driving cylinder, loading driving cylinder and positioning mechanism are distributed in a cross shape around the clamping mechanism, and the cross section of the unloading guide rail is in a square shape with a slot on the upper part.

[0025] In the above technical solution, further, the positioning mechanism includes:

[0026] A positioning frame, which is fixedly arranged on the tapping frame;

[0027] A rotary drive, which is arranged at the upper end of the positioning frame;

[0028] A positioning support plate, the positioning support plate is arranged at the driving end of the rotary driver;

[0029] A counterweight block, which is fixedly arranged on one end of the positioning support plate and is arranged downward;

[0030] A positioning drive cylinder, which is arranged at the other end of the positioning support plate;

[0031] The positioning drive assembly is arranged on the drive end of the positioning drive cylinder.

[0032] In the above technical solution, further, the positioning drive component includes:

[0033] The driving support plate is fixedly arranged on the driving end of the positioning driving cylinder.

[0034] A driving positioning rod, one end of which is fixedly arranged on the driving support plate, and the other end of which is slidably matched with the positioning support plate;

[0035] A positioning drive motor, the positioning drive motor is arranged on one end of the drive support plate;

[0036] An upper driving wheel, which is rotatably arranged on the driving support plate and driven to rotate by a positioning driving motor;

[0037] The driving adjustment mechanism is arranged at the other end of the driving support plate, and the driving adjustment mechanism is driven by the upper driving wheel; wherein during the rotation of the rotary driver, the driving adjustment mechanism is switched between being directly above the clamping mechanism or being away from the clamping mechanism.

[0038] In the above technical solution, further, the driving adjustment mechanism includes:

[0039] A lower positioning sleeve, one end of which is fixedly connected to the upper driving wheel, and the other end of which passes through the driving support plate and extends to the lower side of the driving support plate. The lower positioning sleeve is connected to the driving support plate through a bearing, and a positioning groove is formed in the middle of one end of the lower positioning sleeve located on the lower side of the driving support plate, and a regular polygonal positioning portion is formed in the middle of the positioning groove extending outward;

[0040] The lower buffer sleeve is in the shape of a regular polygonal stepped column with a small upper portion and a large lower portion. The lower buffer sleeve is located at the lower side of the lower positioning sleeve, and a support plate is formed at one end of the lower buffer sleeve close to the lower positioning sleeve. A regular polygonal sliding cavity for inserting the positioning portion is formed in the middle of the end where the support plate is located, and a fixing hole penetrating the lower buffer sleeve is formed at the bottom of the sliding cavity, and a chamfered portion is formed at the bottom of the lower buffer sleeve, so that the bottom of the lower buffer sleeve is a regular polygonal prism;

[0041] An outer base, the outer base is sleeved on the lower outer wall of the lower buffer sleeve, and the outer base and the lower buffer sleeve are slidably matched, a buffer cover is connected to the outer base to prevent separation from the lower buffer sleeve, and a placement cavity is formed in the outer base, the placement cavity includes a regular polygonal main cavity and a buffer cavity arranged at the bottom of the main cavity and located on each side extending into the outer base;

[0042] The lower positioning tube is threadedly connected to the lower side of the outer base, and a regular polygonal positioning hole is formed on the side of the lower positioning tube away from the outer base, and a conical groove is formed at the end of the positioning hole.

[0043] In the above technical solution, further, the driving adjustment mechanism also includes:

[0044] An inner buffer block, wherein a plurality of inner buffer blocks are evenly distributed in the placement cavity according to the circumference, and an inclined portion cooperating with the chamfer portion is formed on one side of the inner buffer block close to the middle of the outer base;

[0045] An inner buffer spring, wherein a plurality of inner buffer springs are evenly arranged in the placement cavity according to the circumference, and one end of the inner buffer spring abuts against an end of the inner buffer block away from the inclined portion, and the other end abuts against the inner wall of the buffer cavity in the placement cavity;

[0046] A fixing rod, the fixing rod passes through the fixing hole and is threadedly connected to the positioning part;

[0047] An upper support spring, which is sleeved on the positioning portion, with one end abutting against the bottom of the positioning groove and the other end abutting against the support plate;

[0048] A lower support spring is arranged between the lower buffer sleeve and the outer base.

[0049] In the above technical solution, further, the clamping mechanism includes:

[0050] A lower driving assembly is arranged at the middle lower end of the tapping frame, and a tapping hole coaxially arranged with the lower driving assembly is formed on the tapping frame;

[0051] An upper clamping assembly, which is arranged on the lower driving assembly and is higher than the upper end surface of the tapping frame;

[0052] A lower ejection mechanism, the lower ejection mechanism is arranged in the lower driving assembly;

[0053] The upper clamping assembly includes:

[0054] A clamping column, one end of which is fixedly connected to the lower driving assembly, and the other end of which extends out of the upper end surface of the tapping frame, and the upper outer wall of the clamping column is tapered with a smaller bottom and a larger top;

[0055] A clamping hole, which is coaxially arranged on the clamping column and passes through the clamping column, and the clamping hole is a regular hexagon;

[0056] The feeding trough is T-shaped and formed at the upper end of the clamping column and connected to the upper part of the clamping hole, and the bottom of the feeding trough is flush with the bottom of the loading guide rail and the unloading guide rail, and the two sides of the feeding trough are respectively connected to the loading guide rail and the unloading guide rail;

[0057] A clamping groove extends downward from the upper end of the clamping column and is provided with a plurality of clamping grooves which are evenly distributed along the circumference and communicated with the clamping hole.

[0058] In the above technical solution, further, the clamping hole includes the following connected in sequence from top to bottom:

[0059] The upper sinking trough has a circular cross section and is connected to the feeding trough, and its depth is slightly greater than that of the feeding trough;

[0060] A tapping placement groove, the tapping placement groove is a regular hexagon, and the diameter of the circumscribed circle of the tapping placement groove is less than or equal to the diameter of the upper material groove;

[0061] A feed hole extending from the bottom of the tapping groove to the other end of the clamping column and passing through the clamping column;

[0062] The lower ejector mechanism includes:

[0063] A lower ejector cylinder, which is arranged on the lower driving assembly;

[0064] The lower ejector rod is coaxially arranged in the ejection hole, and the lower ejector rod is extended out of the ejection hole and enters the tapping placement groove under the drive of the lower ejector cylinder.

[0065] In the above technical solution, further, the upper drive assembly includes:

[0066] An inner placement seat, which is fixedly arranged at the lower end of the tapping machine frame, and a placement hole is coaxially formed on the inner placement seat, and placement plates that cover a portion of the placement hole are formed at both ends of the placement seat;

[0067] An inner bushing assembly is arranged in the placement hole, and a stop edge is formed in the middle of the placement hole to abut against the inner bushing assembly;

[0068] An inner sliding sleeve, wherein the inner sliding sleeve is arranged on the inner side of the inner liner assembly and is slidably connected with the inner sliding sleeve;

[0069] The clamping column is inserted into the inner sliding sleeve, and the inner wall of the inner sliding sleeve is formed with a conical surface that matches the outer wall of the clamping column, and a clamping oil chamber and a loosening oil chamber are formed between the inner bushing assembly and the inner sliding sleeve. The lower ejection cylinder is arranged on the placement plate at the bottom of the placement base, and the lower ejection cylinder enters the placement hole.

[0070] In the above technical solution, further, the inner liner assembly includes:

[0071] An upper bushing, which is arranged at an upper portion of the placement hole;

[0072] A lower bushing, the lower bushing being arranged in the placement hole and located at the lower part of the upper bushing;

[0073] An upper oil cavity hole, the upper oil cavity hole is formed on one side where the upper bushing is connected to the lower bushing;

[0074] A lower oil cavity hole, the lower oil cavity hole is formed on one side where the lower bushing is connected to the upper bushing;

[0075] The upper oil chamber hole is connected with the lower oil chamber hole, a sealing edge is formed in the middle of the inner sliding sleeve, the sealing edge moves up and down in the lower oil chamber, and the loose oil chamber is formed between the sealing edge and the upper oil chamber hole, and the clamping oil chamber is formed between the sealing edge and the lower oil chamber hole; and the outer wall of the inner placement seat is respectively provided with a clamping oil hole and a loose oil hole, an upper oil hole connecting the upper part of the upper oil chamber hole with the loose oil hole is formed on the upper bushing, and a lower oil hole connecting the lower part of the lower oil chamber hole with the clamping oil hole is formed on the lower bushing. Sealing rings are provided on the inner and outer walls of the upper bushing and the lower bushing that cooperate with the inner sliding sleeve.

[0076] The beneficial effects of the present invention are:

[0077] 1. The setting of the loading mechanism and the unloading mechanism can better load or unload the clamping mechanism;

[0078] 2. The clamping mechanism can automatically clamp the bolts, lift the tapped bolts, and cooperate with the unloading mechanism to unload the bolts;

[0079] 3. The positioning mechanism provided can adjust the angle of the nut on the clamping mechanism so that the nut can enter the tapping placement groove, thereby facilitating the clamping mechanism to clamp the nut. BRIEF DESCRIPTION OF THE DRAWINGS

[0080] Figure 1 It is a structural schematic diagram of the first viewing angle of the present invention;

[0081] Figure 2 It is a structural schematic diagram of the second viewing angle of the present invention;

[0082] Figure 3 It is a partial structural schematic diagram of the present invention;

[0083] Figure 4 It is a schematic diagram of the structure of the clamping mechanism and the positioning mechanism in the present invention;

[0084] Figure 5 It is a structural schematic diagram of the clamping mechanism in the present invention;

[0085] Figure 6 It is a structural schematic diagram of the positioning mechanism in the present invention;

[0086] Figure 7 It is a cross-sectional schematic diagram of the cooperation between the clamping mechanism and the positioning mechanism in the present invention;

[0087] The markings in the figure are as follows: 1-tapping frame, 2-feeding guide rail, 3-feeding drive cylinder, 4-feeding push block, 5-unloading guide rail, 6-unloading drive cylinder, 7-unloading push block, 8-positioning frame, 9-rotation drive, 10-positioning support plate, 11-counterweight block, 12-positioning drive cylinder, 13-drive support plate, 14-drive positioning rod, 15-positioning drive motor, 16-upper drive wheel, 17-lower positioning sleeve, 18-lower buffer sleeve, 19-support plate, 20-angle guide, 21-outer base, 22-buffer cover, 23 -lower positioning cylinder, 24-positioning hole, 25-inner buffer block, 26-inner buffer spring, 27-fixing rod, 28-upper support spring, 29-lower support spring, 30-clamping column, 31-feeding trough, 32-clamping groove, 33-upper sinking trough, 34-tapping placement groove, 35-ejection hole, 36-lower ejection cylinder, 37-lower ejection rod, 38-inner placement seat, 39-inner sliding sleeve, 40-clamping oil chamber, 41-loosening oil chamber, 42-upper bushing, 43-lower bushing, 44-sealing edge, 45-tapping mechanism, 46-positioning part. DETAILED DESCRIPTION

[0088] The following will be combined with the drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application belong to the scope of protection of this application.

[0089] Embodiment 1:

[0090] This embodiment provides a fully automatic nut tapping machine, comprising:

[0091] Tapping rack 1;

[0092] A clamping mechanism, which is arranged in the middle of the tapping machine frame 1;

[0093] A tapping mechanism 45, which is disposed on the tapping machine frame 1 and is located on one side of the clamping mechanism;

[0094] A positioning mechanism, which is arranged on the tapping machine frame 1 and is located on the other side of the clamping mechanism;

[0095] A feeding mechanism, which is arranged on the tapping machine frame 1 and is located on one side below the tapping mechanism 45, and the feeding mechanism and the positioning mechanism are symmetrical to each other;

[0096] The unloading mechanism is arranged in the middle of the positioning mechanism and the tapping mechanism 45, and is arranged toward the clamping mechanism and is perpendicular to the loading mechanism.

[0097] In this embodiment, the tapping frame 1 is used to place various mechanisms in the tapping machine; the clamping mechanism can automatically clamp the nut, so that the tapping mechanism 45 can tap the nut; the positioning mechanism is used to adjust the nut on the clamping mechanism, adjust the position and angle of the nut so that the clamping mechanism can clamp the nut; the feeding mechanism is used to feed the clamping mechanism, and the unloading mechanism is used to unload the tapped nut. The tapping mechanism 45 includes a hydraulic lifting platform, a tapping motor is provided on the hydraulic lifting platform, and a spindle tap sleeve is provided on the driving end of the tapping motor. The tapping machine also includes a control cabinet arranged inside the tapping frame 1, and a controller and a control circuit are arranged in the control cabinet. The tapping machine is controlled by the controller programming.

[0098] Embodiment 2:

[0099] This embodiment provides a fully automatic nut tapping machine, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0100] The feeding mechanism includes:

[0101] A feeding guide rail 2, which is arranged on the tapping machine frame 1;

[0102] A feeding drive cylinder 3, which is fixedly arranged on the tapping machine frame 1, with the driving end of the feeding drive cylinder 3 arranged toward the clamping mechanism, and the feeding drive cylinder 3 is located on one side of the feeding guide rail 2;

[0103] A feeding push block 4, which is fixedly arranged on the driving end of the feeding drive cylinder 3;

[0104] The feeding guide rail 2 includes:

[0105] A feed guide portion, which extends from the outer side of the tapping frame 1 to the inner side of the upper end of the tapping frame 1, and the feed guide portion and the feeding mechanism are parallel to each other;

[0106] A feeding guide portion, wherein the feeding guide portion and the feeding guide portion are perpendicular to each other, and the feeding guide portion extends toward one side of the clamping mechanism;

[0107] The loading drive cylinder 3 is located on one side of the loading guide part and is in the same straight line with the loading guide part. A feeding port for a loading push block 4 to enter and pass through is provided at the connection between the loading guide part and the feeding guide part, and the cross-sections of the feeding guide part and the loading guide part are both in the shape of a U-shaped with a groove on the upper part.

[0108] In this embodiment, the feeding guide rail 2 is used to guide the nut on the clamping mechanism. The nut does not move in the U-shaped channel, thereby preventing the nut from shifting during transmission. The feeding guide part in the feeding guide rail 2 is connected to the equipment outside the tapping machine, such as a vibrating plate for automatically feeding the tapping machine. In order to ensure that the nut enters the clamping mechanism smoothly, an interception mechanism can be set at the connection between the feeding guide part and the feeding guide part. The interception mechanism includes an interception cylinder, an interception plate and an interception sensor. The interception cylinder is set on the inlet port of the feeding guide part, and the interception plate is driven by the interception cylinder. The passage into the feeding guide is closed or opened, and an interception sensor is arranged in the entrance of the feeding guide. When the interception sensor senses that a nut has entered, the interception cylinder is started to intercept the nut that is about to enter the feeding guide. When no bolt is sensed, the interception cylinder is started to allow the nut to enter. An arc-shaped pushing groove is formed on the feeding push block 4 on the feeding drive cylinder 3, so as to facilitate the pushing of the nut. The upper pushing block is at the entrance of the feeding guide when the feeding drive cylinder 3 is not driven, and the nut is pushed along the feeding guide toward the clamping mechanism under the drive of the feeding drive cylinder 3, thereby completing the nut feeding to the clamping mechanism.

[0109] Embodiment 3:

[0110] This embodiment provides a fully automatic nut tapping machine, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0111] The unloading mechanism includes:

[0112] A material unloading guide rail 5, which is arranged in the middle of the tapping machine frame 1 and located on one side of the clamping mechanism;

[0113] The unloading drive cylinder 6 is arranged in the middle of the tapping machine frame 1 and on the other side of the clamping mechanism, and the unloading guide rail 5 and the unloading drive cylinder 6 are symmetrical to each other and are respectively in a vertical relationship with the loading mechanism;

[0114] A material unloading push block 7, which is fixedly arranged on the driving end of the material unloading drive cylinder 6;

[0115] The unloading guide rail 5, the unloading drive cylinder 6, the loading drive cylinder 3 and the positioning mechanism are distributed in a cross shape around the clamping mechanism, and the cross section of the unloading guide rail 5 is in a square shape with a slot on the upper part.

[0116] In this embodiment, the unloading drive cylinder 6 is arranged on one side of the clamping mechanism, and the unloading drive cylinder 6 drives the unloading push block 7 to push in the direction of the clamping mechanism. Continuing operation will withdraw the nut on the clamping mechanism from the clamping mechanism, and push the nut into the unloading guide rail 5, and then push the nut out of the unloading guide rail 5; wherein the unloading guide rail 5 extends outside the frame, and a material receiving device can be arranged at the end of the unloading guide rail 5 and outside the tapping frame 1, and the material receiving device can be a material receiving tray or a conveyor belt.

[0117] Embodiment 4:

[0118] This embodiment provides a fully automatic nut tapping machine, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0119] The positioning mechanism includes:

[0120] A positioning frame 8, wherein the positioning frame 8 is fixedly arranged on the tapping frame 1;

[0121] A rotary driver 9, which is arranged at the upper end of the positioning frame 8;

[0122] A positioning support plate 10, wherein the positioning support plate 10 is arranged at the driving end of the rotary driver 9;

[0123] A counterweight block 11, the counterweight block 11 is fixedly disposed on one end of the positioning support plate 10 and is disposed downward;

[0124] A positioning drive cylinder 12, which is disposed at the other end of the positioning support plate 10;

[0125] The positioning drive assembly is arranged on the drive end of the positioning drive cylinder 12 .

[0126] In this embodiment, the positioning frame 8 and the tapping mechanism 45 or the feeding mechanism are symmetrically arranged on both sides of the tapping mechanism 45, so as not to hinder the operation of the feeding mechanism and the tapping mechanism 45; the positioning frame 8 is used to support the rotating driver 9, and the rotating driver 9 is a rotating cylinder with a rotation angle of 180° or 90°; when the rotating drive cylinder rotates, the positioning drive assembly will be rotated to the top of the clamping mechanism, and when the rotating drive cylinder is reset, the positioning drive assembly will be away from the clamping mechanism; the counterweight block 11 and the positioning drive assembly are asymmetrically arranged on both sides of the positioning support plate 10; the positioning support plate 10 is used to place the configuration block, the positioning drive cylinder 12 and the positioning drive assembly; and the setting of the configuration block can ensure the stability of its overall operation during the process of the rotating driver 9 driving the positioning support plate 10 to rotate.

[0127] Embodiment 5:

[0128] This embodiment provides a fully automatic nut tapping machine, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0129] The positioning drive components include:

[0130] The driving support plate 13 is fixedly arranged on the driving end of the positioning driving cylinder 12.

[0131] A driving positioning rod 14, one end of the plurality of driving positioning rods 14 is fixedly disposed on the driving support plate 13, and the other end thereof is slidably matched with the positioning support plate 10;

[0132] A positioning drive motor 15, which is disposed on one end of the driving support plate 13;

[0133] An upper driving wheel 16, which is rotatably disposed on the driving support plate 13 and driven to rotate by the positioning driving motor 15;

[0134] The driving adjustment mechanism is arranged at the other end of the driving support plate 13, and the driving adjustment mechanism is driven by the upper driving wheel 16; wherein the rotary driver 9 switches the driving adjustment mechanism between being directly above the clamping mechanism or away from the clamping mechanism during rotation.

[0135] In this embodiment, the driving support plate 13 is used to accommodate the positioning driving motor 15, the upper driving wheel 16 and the driving adjustment mechanism, and the driving positioning rod 14 is slidably matched with the positioning frame 8, so that when the driving support plate 13 is moved up and down under the drive of the positioning driving cylinder 12, the driving support plate 13 is ensured to operate stably and without shaking; and the positioning driving motor 15 is used to drive the upper driving wheel 16, and the upper driving wheel 16 drives the driving adjustment mechanism to rotate, thereby facilitating the driving adjustment mechanism to rotate; the entire movement process of the positioning driving component is that it is first driven by the rotation of the rotary driver 9 to rotate above the clamping mechanism, and then pressed toward the clamping mechanism by the driving of the positioning driving cylinder 12, so that the positioning driving component is pressed against the nut on the clamping mechanism, and finally driven to rotate by the positioning driving motor 15, thereby driving the nut to adjust the angle, and then fine-tuning the nut to facilitate it to enter the groove on the clamping mechanism for accommodating the nut.

[0136] Embodiment 6:

[0137] This embodiment provides a fully automatic nut tapping machine, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0138] The drive adjustment mechanism includes:

[0139] A lower positioning sleeve 17, one end of which is fixedly connected to the upper driving wheel 16, and the other end of which passes through the driving support plate 13 and extends to the lower side of the driving support plate 13, the lower positioning sleeve 17 is connected to the driving support plate 13 through a bearing, and a positioning groove is formed in the middle of one end of the lower positioning sleeve 17 located at the lower side of the driving support plate 13, and a regular polygonal positioning portion 46 is formed in the middle of the positioning groove;

[0140] The lower buffer sleeve 18 is in the shape of a regular polygonal stepped column with a small upper portion and a large lower portion. The lower buffer sleeve 18 is located at the lower side of the lower positioning sleeve 17, and a support plate 19 is formed at one end of the lower buffer sleeve 18 close to the lower positioning sleeve 17. A regular polygonal sliding cavity for inserting the positioning portion 46 is formed in the middle of the end where the support plate 19 is located, and a fixing hole penetrating the lower buffer sleeve 18 is formed at the bottom of the sliding cavity, and a chamfered portion 20 is formed at the bottom of the lower buffer sleeve 18, so that the bottom of the lower buffer sleeve 18 is a regular polygonal prism;

[0141] The outer base 21 is sleeved on the lower outer wall of the lower buffer sleeve 18, and the outer base 21 and the lower buffer sleeve 18 are slidably matched. A buffer cover 22 is connected to the outer base 21 to prevent it from being separated from the lower buffer sleeve 18, and a placement cavity is formed in the outer base 21. The placement cavity includes a regular polygonal main cavity and a buffer cavity arranged at the bottom of the main cavity and extending into the outer base 21 on each side;

[0142] The lower positioning tube 23 is threadedly connected to the lower side of the outer base 21 , and a regular polygonal positioning hole 24 is formed on the side of the lower positioning tube 23 away from the outer base 21 , and a conical groove is formed at the end of the positioning hole 24 .

[0143] In this embodiment, the lower positioning sleeve 17 is used to connect with the upper driving wheel 16, and the lower buffer sleeve 18 plays a good role in receiving between the lower positioning sleeve 17 and the outer base 21, and the outer base 21 can play a good role in buffering and guiding, so as to prevent the positioning drive assembly from directly squeezing the nut, thereby causing damage to the nut or the equipment; and the lower positioning cylinder 23 is used to contact with the nut. When contacting with the nut, the nut will first cooperate with the conical groove. During the slow rotation of the lower positioning cylinder 23, the nut will enter the positioning hole 24, so that the lower positioning cylinder 23 can better adjust the angle and position of the nut; and the regular polygonal positioning portion 46 and the regular polygonal lower buffer sleeve 18 can better transmit torque, thereby facilitating the adjustment of the nut.

[0144] Embodiment 7:

[0145] This embodiment provides a fully automatic nut tapping machine, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0146] The drive adjustment mechanism also includes:

[0147] An inner buffer block 25, wherein a plurality of inner buffer blocks 25 are evenly distributed in the placement cavity according to the circumference, and a side of the inner buffer block 25 close to the middle of the outer base is formed with an inclined portion that cooperates with the chamfer portion 20;

[0148] An inner buffer spring 26, wherein a plurality of inner buffer springs are evenly arranged in the placement cavity according to the circumference, and one end of the inner buffer spring 26 abuts against an end of the inner buffer block 25 away from the inclined portion, and the other end abuts against the inner wall of the buffer cavity in the placement cavity;

[0149] A fixing rod 27, the fixing rod 27 passes through the fixing hole and is threadedly connected to the positioning portion 46;

[0150] An upper support spring 28, which is sleeved on the positioning portion 46, with one end of the upper support spring abutting against the bottom of the positioning groove and the other end abutting against the support plate 19;

[0151] The lower support spring 29 is disposed between the lower buffer sleeve 18 and the outer base 21 .

[0152] In this embodiment, the cooperation between the inner buffer block 25 and the inner buffer spring 26 enables the bottom of the lower buffer sleeve 18 to be elastically connected to the outer base 21, so that it can play a good buffering role when the positioning drive rod presses down and squeezes the nut, and the cooperation between the upper support spring 28 and the lower support spring 29 enables the positioning drive component to be elastically compressed at the moment of contact with the nut, thereby reducing the pressure on the nut, and after the lower positioning hole 24 rotates to allow the nut to enter the positioning hole 24, the positioning drive component is reset, thereby releasing the pressure and pushing the nut into the groove on the clamping mechanism for accommodating the nut.

[0153] Embodiment 8:

[0154] This embodiment provides a fully automatic nut tapping machine, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0155] The clamping mechanism includes:

[0156] A lower driving assembly, which is arranged at the lower end of the middle part of the tapping frame 1, and a tapping hole coaxially arranged with the lower driving assembly is formed on the tapping frame 1;

[0157] An upper clamping assembly, which is arranged on the lower driving assembly and is higher than the upper end surface of the tapping frame 1;

[0158] A lower ejection mechanism, the lower ejection mechanism is arranged in the lower driving assembly;

[0159] The upper clamping assembly includes:

[0160] A clamping column 30, one end of which is fixedly connected to the lower driving assembly, and the other end of which extends out of the upper end surface of the tapping frame 1, and the upper outer wall of the clamping column 30 is tapered with a smaller bottom and a larger top;

[0161] A clamping hole, which is coaxially arranged on the clamping column 30 and passes through the clamping column 30, and the clamping hole is a regular hexagon;

[0162] The material trough 31 is T-shaped and formed at the upper end of the clamping column 30, and is connected to the upper part of the clamping hole, and the bottom of the material trough 31 is flush with the bottom of the loading guide rail 2 and the unloading guide rail 5, and the two sides of the material trough 31 are respectively connected to the loading guide rail 2 and the unloading guide rail 5;

[0163] A plurality of clamping grooves 32 are extended downward from the upper end of the clamping column 30 and are evenly distributed along the circumference and communicated with the clamping hole.

[0164] In this embodiment, the lower driving assembly is used to drive the upper clamping assembly to operate, so that the upper clamping assembly can clamp the nut; and the upper clamping assembly is used to clamp the nut to ensure that the nut does not deviate during the tapping process; wherein the upper clamping assembly clamps the nut through the clamping column 30; the bottom of the feeding groove 31 is flush with the bottom of the feeding guide rail 2 and the unloading guide rail 5, so that when the nut enters the clamping mechanism, it will first pass through the feeding groove 31 and then enter the clamping hole, and the nut is limited by the regular hexagonal clamping hole; the clamping column 30 is driven and squeezed by the lower driving assembly to reduce the gap of the clamping groove 32 and shrink the clamping hole, so that the nut is firmly fixed; and the width of the feeding groove 31 is equal to the width of the feeding guide rail 2 and the unloading guide rail 5, so as to prevent the nut from sliding out of the feeding groove 31 when the nut moves. And the T-shaped wiring groove can facilitate the passage of the feeding push block 4 and the unloading push block 7.

[0165] Embodiment 9:

[0166] This embodiment provides a fully automatic nut tapping machine, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0167] The clamping holes are connected in sequence from top to bottom:

[0168] The upper sinking trough 33 has a circular cross section and is connected to the feeding trough 31, and its depth is slightly greater than that of the feeding trough 31;

[0169] A tapping placement groove 34, the tapping placement groove 34 is a regular hexagon, and the diameter of the circumscribed circle of the tapping placement groove 34 is less than or equal to the diameter of the upper material groove;

[0170] A feed hole 35 extending from the bottom of the tapping groove 34 to the other end of the clamping column 30 and passing through the clamping column 30;

[0171] The lower ejector mechanism includes:

[0172] A lower ejection cylinder 36, which is disposed on the lower drive assembly;

[0173] The lower ejector rod 37 is coaxially arranged in the ejection hole 35 , and the lower ejector rod 37 is extended out of the ejection hole 35 and enters the tapping placement groove 34 under the drive of the lower ejector cylinder 36 .

[0174] In this embodiment, the upper sinking trough 33 is used to receive the nut. The nut first enters the upper sinking trough 33 through the feeding trough 31, so that the nut is initially positioned. Then the nut rotates under the drive of the positioning drive assembly until the nut falls into the tapping placement groove 34, thereby firmly fixing the nut. The lower ejection mechanism can lift the nut on the tapping placement groove 34 after the nut tapping is completed, so that the nut is at a position slightly higher than the bottom height of the upper sinking trough 33, and then the nut is pushed out of the upper sinking trough 33 and enters the feeding trough 31 through the unloading drive cylinder 6, and finally the tapping machine is pushed out through the unloading guide rail 5.

[0175] Embodiment 10:

[0176] This embodiment provides a fully automatic nut tapping machine, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0177] The upper drive assembly includes:

[0178] An inner placement seat 38, the inner placement seat 38 is fixedly arranged at the lower end of the tapping machine frame 1, and a placement hole is coaxially formed on the inner placement seat 38, and placement plates that cover a portion of the placement hole are formed at both ends of the placement seat;

[0179] An inner bushing assembly is arranged in the placement hole, and a stop edge is formed in the middle of the placement hole to abut against the inner bushing assembly;

[0180] An inner sliding sleeve 39, which is disposed on the inner side of the inner liner assembly and is slidably connected to the inner sliding sleeve 39;

[0181] The clamping column 30 is inserted into the inner sliding sleeve 39, and the inner wall of the inner sliding sleeve 39 is formed with a conical surface that matches the outer wall of the clamping column 30, and a clamping oil chamber 40 and a loosening oil chamber 41 are formed between the inner bushing assembly and the inner sliding sleeve 39. The lower ejector cylinder is arranged on the placement plate at the bottom of the placement base, and the lower ejector cylinder 36 enters the placement hole.

[0182] In this embodiment, the inner seating seat 38 is the same as the various components in the supporting upper driving assembly. The inner sleeve assembly is used to support the inner sliding sleeve 39, and cooperate with the external hydraulic oil to drive the inner sliding sleeve 39 to move up and down; and because the inner wall of the inner sliding sleeve 39 is formed with a conical surface that cooperates with the outer wall of the clamping column 30, the inner sliding sleeve 39 will squeeze the clamping column 30 when it moves upward, and due to the clamping groove 32 set on the clamping column 30, the upper part of the clamping column 30 is slightly deformed, so that the tapping seating groove 34 is deformed and firmly clamps the nut; when the inner sliding sleeve 39 moves downward, the clamping column 30 resets and loosens the nut, and then the tapped nut is pushed out through the lower ejection mechanism.

[0183] Embodiment 11:

[0184] This embodiment provides a fully automatic nut tapping machine, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0185] The liner assembly includes:

[0186] An upper bushing 42, the upper bushing 42 is arranged at an upper portion of the placement hole;

[0187] A lower bushing 43, wherein the lower bushing 43 is disposed in the placement hole and is located at the lower part of the upper bushing 42;

[0188] An upper oil cavity hole, which is formed on one side where the upper bushing 42 is connected to the lower bushing 43;

[0189] A lower oil cavity hole, which is formed on one side where the lower bushing 43 is connected to the upper bushing 42;

[0190] The upper oil chamber hole is connected with the lower oil chamber hole, a sealing edge 44 is formed in the middle of the inner sliding sleeve 39, the sealing edge 44 moves up and down in the lower oil chamber, and the loosening oil chamber 41 is formed between the sealing edge 44 and the upper oil chamber hole, and the clamping oil chamber 40 is formed between the sealing edge 44 and the lower oil chamber hole; and the outer wall of the inner placement seat 38 is respectively provided with a clamping oil hole and a loosening oil hole, and the upper bushing 42 is formed with an upper oil hole connecting the upper part of the upper oil chamber hole with the loosening oil hole, and the lower bushing 43 is formed with a lower oil hole connecting the lower part of the lower oil chamber hole with the clamping oil hole. The upper bushing 42 and the lower bushing 43 are provided with sealing rings on the inner and outer walls of the inner sliding sleeve 39.

[0191] In this embodiment, a clamping edge is formed in the seating hole of the inner seating seat 38, one end of the lower bushing 43 is abutted against the clamping edge, the other end of the lower bushing 43 is abutted against the upper bushing 42, and the end of the upper bushing 42 away from the lower bushing 43 is abutted against the seating plate, and an offset occurs from the placement of the upper bushing 42 and the lower bushing 43; and due to the setting of the sealing edge 44, the clamping oil chamber 40 and the loosening oil chamber 41 are better formed, and when hydraulic oil is delivered to the clamping oil chamber 40, the inner sliding sleeve 39 moves up to clamp the nut of the clamping column 30; when hydraulic oil is delivered to the loosening oil chamber 41, the inner sliding sleeve 39 moves down to loosen the nut of the clamping column 30. A two-position three-way valve is connected to the outside of the clamping oil hole and the loosening oil hole through a pipeline, one channel of the two-position three-way valve is connected to the clamping oil hole and the loosening oil hole, one channel is connected to hydraulic equipment such as a hydraulic pump, and the other is connected to a return oil tank. When the valve core in the two-position three-way valve is in a first position, it is connected to the return oil tank and the clamping oil hole or the loosening oil hole, and when the valve core in the two-position three-way valve is in a second position, it is connected to the hydraulic equipment and the clamping oil hole or the loosening oil hole.

[0192] The embodiments of the present application are described above in conjunction with the accompanying drawings. In the absence of conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.

Claims

1. A fully automatic nut tapping machine, characterized in that: include: Tapping rack (1); A clamping mechanism, wherein the clamping mechanism is arranged in the middle of the tapping machine frame (1); A tapping mechanism (45), wherein the tapping mechanism (45) is arranged on the tapping machine frame (1) and is located on one side of the clamping mechanism; A positioning mechanism, the positioning mechanism being arranged on the tapping machine frame (1) and located on the other side of the clamping mechanism, the positioning mechanism being used to adjust a nut on the clamping mechanism, and adjusting the position and angle of the nut so that the clamping mechanism can clamp the nut; A feeding mechanism, the feeding mechanism being arranged on the tapping machine frame (1) and located on one side below the tapping mechanism (45); A feeding mechanism, wherein the feeding mechanism is arranged in the middle of the positioning mechanism and the tapping mechanism (45), and is arranged in the direction of the clamping mechanism and is in a perpendicular relationship with the feeding mechanism; The feeding mechanism comprises: A feeding guide rail (2), wherein the feeding guide rail (2) is arranged on the tapping machine frame (1); A feeding drive cylinder (3), wherein the feeding drive cylinder (3) is fixedly arranged on the tapping machine frame (1), the driving end of the feeding drive cylinder (3) is arranged toward the clamping mechanism, and the feeding drive cylinder (3) is located on one side of the feeding guide rail (2); A feeding push block (4), wherein the feeding push block (4) is fixedly arranged on the driving end of the feeding drive cylinder (3); The unloading mechanism comprises: A material unloading guide rail (5), wherein the material unloading guide rail (5) is arranged in the middle of the tapping machine frame (1) and is located on one side of the clamping mechanism; A material unloading drive cylinder (6), wherein the material unloading drive cylinder (6) is arranged in the middle of the tapping machine frame (1) and is located on the other side of the clamping mechanism; A material unloading push block (7), wherein the material unloading push block (7) is fixedly arranged on the driving end of the material unloading drive cylinder (6); The positioning mechanism comprises: A positioning frame (8), wherein the positioning frame (8) is fixedly arranged on the tapping frame (1); A rotary driver (9), wherein the rotary driver (9) is arranged at the upper end of the positioning frame (8); A positioning support plate (10), wherein the positioning support plate (10) is arranged at a driving end of the rotary driver (9); A counterweight block (11), wherein the counterweight block (11) is fixedly mounted on one end of the positioning support plate (10) and is arranged downward; A positioning drive cylinder (12), wherein the positioning drive cylinder (12) is arranged at the other end of the positioning support plate (10); A positioning drive assembly, wherein the positioning drive assembly is arranged on a drive end of the positioning drive cylinder (12); The clamping mechanism comprises: A lower drive assembly, wherein the lower drive assembly is arranged at the middle lower end of the tapping machine frame (1), and a tapping hole coaxially arranged with the lower drive assembly is formed on the tapping machine frame (1); An upper clamping assembly, wherein the upper clamping assembly is arranged on the lower driving assembly; A lower ejection mechanism, wherein the lower ejection mechanism is disposed in the lower driving assembly; The upper clamping assembly includes: A clamping column (30), one end of which is fixedly connected to the lower driving assembly, and the other end of which extends out of the upper end surface of the tapping machine frame (1), and the outer wall of the clamping column (30) is tapered with a smaller bottom and a larger top; A clamping hole, the clamping hole being coaxially arranged on the clamping column (30) and penetrating the clamping column (30); A material trough (31), wherein the material trough (31) is T-shaped and formed at the upper end of the clamping column (30), and is connected to the upper part of the clamping hole, and the bottom of the material trough (31) is flush with the bottom of the loading guide rail (2) and the unloading guide rail (5), and the two sides of the material trough (31) are respectively connected to the loading guide rail (2) and the unloading guide rail (5); A clamping groove (32) extends downward from the upper end of the clamping column (30) to form a plurality of clamping grooves (32) evenly distributed along a circumference and connected to the clamping hole.

2. A fully automatic nut tapping machine according to claim 1, characterized in that: The positioning drive assembly comprises: A driving support plate (13), wherein the driving support plate (13) is fixedly arranged on the driving end of the positioning driving cylinder (12). A driving positioning rod (14), wherein one end of the driving positioning rod (14) is fixedly disposed on the driving support plate (13), and the other end is slidably engaged with the positioning support plate (10); A positioning drive motor (15), wherein the positioning drive motor (15) is arranged on one end of the drive support plate (13); An upper driving wheel (16), wherein the upper driving wheel (16) is rotatably disposed on the driving support plate (13) and is driven to rotate by a positioning driving motor (15); A driving adjustment mechanism, wherein the driving adjustment mechanism is arranged at the other end of the driving support plate (13), and the driving adjustment mechanism is driven to operate by the upper driving wheel (16).

3. A fully automatic nut tapping machine according to claim 2, characterized in that: The driving adjustment mechanism comprises: A lower positioning sleeve (17), wherein the lower positioning sleeve (17) is connected to the driving support plate (13) via a bearing, and a positioning groove is formed in the middle of one end of the lower positioning sleeve (17) located at the lower side of the driving support plate (13), and a regular polygonal positioning portion (46) is formed in the middle of the positioning groove extending outward; A lower buffer sleeve (18), wherein a support plate (19) is formed at one end of the lower buffer sleeve (18) close to the lower positioning sleeve (17), a sliding cavity for inserting the positioning portion (46) is formed in the middle of the end where the support plate (19) is located, and a fixing hole penetrating the lower buffer sleeve (18) is formed at the bottom of the sliding cavity, and a chamfer portion (20) is formed at the bottom of the lower buffer sleeve (18); an outer base (21), the outer base (21) being sleeved on the lower outer wall of the lower buffer sleeve (18), and the outer base (21) and the lower buffer sleeve (18) being slidably matched, a buffer cover (22) being connected to the outer base (21) to prevent the outer base (21) from being separated from the lower buffer sleeve (18), and a placement cavity being formed in the outer base (21); A lower positioning tube (23) is threadedly connected to the lower side of the outer base (21), and a regular polygonal positioning hole (24) is formed on a side of the lower positioning tube (23) away from the outer base (21), and a conical groove is formed at the end of the positioning hole (24).

4. A fully automatic nut tapping machine according to claim 3, characterized in that: The driving adjustment mechanism further comprises: An inner buffer block (25), wherein a plurality of the inner buffer blocks (25) are evenly distributed in the placement cavity along a circumference, and a side of the inner buffer block (25) close to the middle of the outer base (21) is formed with an inclined portion that cooperates with the chamfer portion (20); An inner buffer spring (26), wherein a plurality of the inner buffer springs (26) are evenly arranged in a circumferential manner in the placement cavity, and one end of the inner buffer spring (26) abuts against an end of the inner buffer block (25) away from the inclined portion, and the other end abuts against the inner wall of the placement cavity; A fixing rod (27), wherein the fixing rod (27) passes through the fixing hole and is threadedly connected to the positioning portion (46); an upper support spring (28), wherein the upper support spring (28) is sleeved on the positioning portion (46), and one end of the upper support spring abuts against the bottom of the positioning groove, and the other end of the upper support spring abuts against the support plate (19); A lower support spring (29) is arranged between the lower buffer sleeve (18) and the outer base (21).

5. A fully automatic nut tapping machine according to claim 4, characterized in that: The clamping hole includes the following connected in sequence from top to bottom: An upper sinking trough (33), wherein the cross section of the upper sinking trough (33) is circular; A tapping placement groove (34), wherein the tapping placement groove (34) is in the shape of a regular polygon, and the diameter of the circumscribed circle of the tapping placement groove (34) is less than or equal to the diameter of the upper material groove; A feed hole (35), the feed hole (35) extending from the bottom of the tapping groove (34) to the other end of the clamping column (30) and penetrating the clamping column (30); The lower ejection mechanism comprises: A lower ejection cylinder (36), wherein the lower ejection cylinder (36) is arranged on the lower driving assembly; A lower ejector rod (37) is coaxially arranged in the ejector hole (35), and driven by the lower ejector cylinder (36), the lower ejector rod (37) extends out of the ejector hole (35) and enters the tapping placement groove (34).

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