Self-balancing tapping machine for nut machining

Abstract

The invention relates to the technical field of tapping machines, in particular to a self-balancing tapping machine for nut machining. The tapping machine comprises a base and at least one working set. Each working set comprises a movable fixing assembly, a cutting tool bar, a lifting fixing assembly, a gravity self-balancing device and a return assembly, wherein the gravity self-balancing device and the return assembly are connected with the lifting fixing assembly. The movable fixing assembly comprises a tapping seat and a movable clamp, a mold through hole is formed in the tapping seat in a penetrating mode, and the movable clamp is arranged above the tapping seat and used for clamping a nut to move and fix the nut; the lifting fixing assembly is arranged above the movable clamp and detachably clamps one end of the cutting tool bar, the return assembly is arranged below the tapping base, and after tapping is completed, the cutting tool bar is separated from the lifting fixing assembly and penetrates through the die through hole to reach the return assembly. The device can be self-adaptive to work of screw taps with different tooth pitches, additional arrangement or component modification is not needed, the problem that components are tedious to arrange or replace in the use process of existing similar equipment is solved, and the standard rate and quality of workpieces can be improved.

Description

Technical Field

[0001] The invention relates to the technical field of tapping machines, in particular to a self-balancing tapping machine for nut processing. Background Art

[0002] The tapping machine uses a motor or cylinder to control the cutting tool rod to rotate and descend on the inner ring of the nut to tap the inner ring of the nut. However, the cutting tool rod is often affected by the force and weight of the equipment during the tapping process, resulting in different tapping pitches. Moreover, after the tapping is completed, the cutting tool rod is often withdrawn along the original path to separate the cutting tool rod and the nut. However, due to the difference in the force of the cutting tool rod running up and down, this actually increases the error of the tapped thread and greatly reduces the tapping accuracy. Summary of the invention

[0003] The purpose of the present invention is to overcome the above-mentioned shortcomings and provide a self-balancing tapping machine for nut processing, which has the advantages of high processing accuracy, high degree of automation, simple equipment and low maintenance cost.

[0004] To achieve the above-mentioned purpose, the technical solution of the present invention is: a self-balancing tapping machine for nut processing, the tapping machine includes a base and at least one working group, the working group includes a movable and fixed component, a cutting tool rod, a lifting and fixing component and a return component, the movable and fixed component includes a tapping seat and a movable clamp, the tapping seat is penetrated by a mold through hole, the movable clamp is arranged above the tapping seat, and is used to clamp the nut for movement and fixation; the lifting and fixing component is arranged above the movable clamp and detachably clamps one end of the cutting tool rod, and the return component is arranged below the tapping seat, after the tapping is completed, the cutting tool rod is separated from the lifting and fixing component and passes through the mold through hole to reach the return component; when the nut leaves the tapping seat, the return component rises to reload the cutting tool rod into the lifting and fixing component.

[0005] Furthermore, the lifting and fixing assembly includes a fixed sleeve, a long driving gear, a lifting seat, a cylinder and a self-balancing air valve. One end of the fixed sleeve is detachably connected to the cutting tool rod. A gear is arranged on one side of the fixed sleeve. The long driving gear meshes with the gear and causes the fixed sleeve to rotate. The fixed sleeve passes through the lifting seat and is rotatably connected thereto. The cylinder is connected to the lifting seat and controls its lifting and lowering. The self-balancing air valve is connected to the air inlet of the cylinder. When the cutting tool rod is tapped in the nut, the self-balancing air valve adjusts the extension force of the cylinder to offset the action forces of the fixed sleeve, the lifting seat and the cutting tool rod. At this time, the descent of the cutting tool rod is achieved by the action force between the rotating cutting tool rod and the nut.

[0006] Furthermore, the self-balancing air valve includes a valve body, a piston, a motor, a sealing block and a precision spring. A control groove is provided in the valve body. An air inlet and an air outlet are respectively provided at the bottom and side walls of the control groove. The air inlet is connected to an external air intake device and the cylinder. A sealing block is provided on the air inlet. The piston is arranged in the control groove. The precision spring connects the sealing block and the piston. The motor is connected to the valve body and drives the piston to move in the control groove to realize elastic force adjustment of the precision spring, maintain the air intake amount of the external air intake device, and realize the extension and contraction force adjustment of the cylinder by controlling the air outlet of the self-balancing air valve.

[0007] Furthermore, the lifting and fixing assembly also includes a telescopic inner rod, a clamping seat is embedded in one end of the fixed sleeve, the clamping seat includes a plurality of fan-shaped blocks and elastic parts, the plurality of fan-shaped blocks are arranged in a ring and form an inner ring with a diameter smaller than the diameter of the cutting tool rod, one end of the cutting tool rod can be movably inserted into the inner ring, the telescopic inner rod is arranged in the fixed sleeve, and after tapping is completed, the telescopic inner rod is extended to push the cutting tool rod out of the clamping seat.

[0008] Furthermore, the movable clamp includes a movable platform, an opening and closing seat, a left clamp, a right clamp and a connecting rod. The movable platform is slidably arranged on one side of the tapping seat. The movable translation platform is respectively provided with a transverse slide rail and a longitudinal slide rail. The opening and closing seat is slidably connected to the longitudinal slide rail. One end of the left clamp and the right clamp are slidably connected to the transverse track. The other ends of the left clamp and the right clamp are provided with grooves corresponding to the shape of the nut facing each other. There are two connecting rods, one connecting rod rotatably connecting the left clamp and the opening and closing seat, and the other connecting rod rotatably connecting the right clamp and the opening and closing seat. Moving the opening and closing seat causes the left clamp and the right clamp to move toward or away from each other.

[0009] Furthermore, the tapping machine also includes a feeding assembly, and at least two storage tables are provided on the other side of the tapping seat. The feeding assembly is mounted above the storage tables to realize the transportation of untapped nuts on different storage tables; a lower hopper is provided between the storage table and the tapping seat, and the mobile clamp releases the tapped nuts when it reaches above the lower hopper, and then further moves the untapped nuts on the clamping table to the top of the tapping seat for tapping.

[0010] Furthermore, the tapping machine also includes an automatic circulation system for cutting fluid, which includes a storage box and a spray nozzle. The storage box is arranged in the base, and the spray nozzle is arranged on one side of the cutting tool rod. The spray nozzle is connected to the storage box through an external pipe, and the storage box transports cutting fluid into the spray nozzle.

[0011] Furthermore, the tapping machine also includes a waste chip collection component, which is arranged in the storage box to realize the output of waste chips in the storage box.

[0012] Furthermore, the return assembly includes a receiving tube and a lifting drive member, wherein the receiving tube is located below the mold through hole and connected to the lifting drive member, and the lifting drive member moves the receiving tube containing the cutting tool rod through the mold through hole to load the tap into the fixed sleeve.

[0013] Furthermore, the movable fixing assembly also includes a limiting platform, and two limiting platforms are arranged on the left and right sides of the tapping seat facing each other to limit the other ends of the left clamp and the right clamp.

[0014] By adopting the above technical solution, the beneficial effects of the present invention are: The present invention sets a mold through hole on the tapping seat, cooperates with a detachable cutting tool rod, realizes the separation of the cutting tool rod and the nut after tapping, and avoids the tapping error caused by backing off the original path; and sets a return assembly to realize the automatic resetting of the cutting tool rod, thereby improving the automation degree of the tapping machine. The self-balancing air valve is set to adjust the downward force of the cylinder to offset the force of the fixed sleeve and the lifting seat on the cutting tool rod and the weight of the cutting tool rod, so that the cutting tool rod is driven downward only by the rotation of the thread on the tapping rod during the tapping process, which greatly increases the tapping accuracy and avoids uneven pitch caused by other forces that promote the sinking of the tapping rod during the descent process, so as to achieve error-free feeding pitch when cutting. The device can adapt to taps with different pitches without the need to set up or modify components, which solves the cumbersome setting or replacement of components in the use of existing similar equipment, and can improve the standard rate and quality of workpieces.

[0015] By setting a motor to drive the piston to move in the valve body, the elastic force of the tight spring can be adjusted, thereby controlling the force of the sealing block on the air inlet hole, thereby achieving the purpose of controlling the force of the cylinder, and the adjustment of the motor is tighter and more automated; by setting an internal telescopic rod and a clamping seat, the cutting tool rod can be fixed and ejected, the structure is simple, and the production cost is low.

[0016] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present disclosure.

[0017] Undoubtedly, these and other objects of the present invention will become more apparent after the following detailed description of the preferred embodiment described with reference to various figures and drawings.

[0018] In order to make the above and other purposes, features and advantages of the present invention more obvious and easy to understand, one or several preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation of the present invention.

[0020] In the drawings, the same reference numerals are used for the same components and the drawings are schematic and not necessarily drawn to scale.

[0021] In order to more clearly illustrate the embodiments of the present invention 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 one or several embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on such drawings without paying creative work.

[0022] Figure 1 This is a schematic diagram of the overall structure of a self-balancing tapping machine for nut processing according to the present invention; Figure 2 for Figure 1 A partial enlarged view of the middle part; Figure 3 A schematic diagram of the working group structure of a self-balancing tapping machine for nut processing according to the present invention; Figure 4 It is a schematic diagram of the structure of the moving and fixing components of a self-balancing tapping machine for nut processing according to the present invention; Figure 5 It is a side view of a moving and fixing assembly of a self-balancing tapping machine for nut processing according to the present invention; Figure 6 It is a schematic structural diagram of a feed assembly of a self-balancing tapping machine for nut processing according to the present invention; Figure 7 It is a schematic diagram of the structure of a clamping seat of a self-balancing tapping machine for nut processing according to the present invention; Figure 8 The present invention is a schematic diagram of the internal structure of a self-balancing air valve of a self-balancing tapping machine for nut processing.

[0023] Description of main reference numerals: 1- Base; 11- lower hopper; 2- Working Group; 21-mobile fixed assembly; 21a-connecting rod; 1b6-horizontal slide rail; 1b7-longitudinal slide rail; 21c-limiting table; -tapping seat; 1a1-mold through hole; 21b-mobile clamp; 1b1-mobile platform; 1b2-opening and closing seat; 1b3-left clamp; 1b4-right clamp; 1b5 22- cutting tool bar; 23-lifting and fixing assembly; 23a-fixing sleeve; 3a1-gear; 23b-long driving gear; 23c-lifting seat; 23d-cylinder (connected to 23e); 23e-self-balancing air valve; 3e1-valve body; 3e11-control groove; 3e12-inlet hole; 3e13-outlet hole; 3e2-piston; 3e3-motor; 3e4-sealing block; 3e5-precision spring; 23f-telescopic inner rod; 23g-clamping seat; 3g1-sector block; 3g2-elastic member; 24-return assembly; 24a-receiving cylinder; 24b-lifting drive member; 3-feeding assembly; 4-storage table; 5- Automatic circulation system of cutting fluid; 51-storage box; 52-spray nozzle; 6-Waste collection assembly. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with specific embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, but are not used to limit the present invention.

[0025] Reference Figure 1-8 The present invention provides a technical solution: a self-balancing tapping machine for nut processing, comprising a base 1, a working group 2, a feeding component 3, an automatic cutting liquid circulation system 5 and a waste chip collection component 6.

[0026] The working group 2 has at least one group, which includes a moving and fixing component 21, a cutting tool rod 22, a lifting and fixing component 23 and a return component 24.

[0027] The movable fixing assembly 21 comprises a tapping seat 21a and a movable clamp 21b. The tapping seat 21a is provided with a mold through hole 1a1, which not only reserves a drilling space for the cutting tool bar 22, but also provides a channel for the separation of the cutting tool bar 22. The movable clamp 21b is used to clamp the nut for movement and fixation, specifically: the movable clamp 21b is arranged above the tapping seat 21a, and includes a movable platform 1b1, an opening and closing seat 1b2, a left clamp 1b3, a right clamp 1b4 and a connecting rod 1b5, the movable platform 1b1 is slidably arranged on one side of the tapping seat 21a, a telescopic cylinder is provided at the bottom of the movable platform 1b1, and a transverse slide rail 1b6 and a longitudinal slide rail 1b7 are respectively provided on the movable translation platform, the opening and closing seat 1b2 is slidably connected to the longitudinal slide rail 1b7, one end of the left clamp 1b3 and the right clamp 1b4 are both slidably connected to the transverse rail, and the other ends of the left clamp 1b3 and the right clamp 1b4 are provided with grooves corresponding to the shape of the nut, and the grooves correspond to the shapes of the nut, thereby improving the clamping effect of the movable clamp 21b on the nut during tapping. There are two connecting rods 1b5, one connecting rod 1b5 is rotatably connected to the left clamp 1b3 and the opening and closing seat 1b2, and the other connecting rod 1b5 is rotatably connected to the right clamp 1b4 and the opening and closing seat 1b2, and the opening and closing seat 1b2 is moved forward and backward to cause the left clamp 1b3 and the right clamp 1b4 to move toward or away from each other, thereby clamping and releasing the nut. In order to increase the force of the clamping end of the mobile clamp 21b on the nut, a limit platform 21c is set at the other end of the left clamp 1b3 and the right clamp 1b4, specifically: two limit platforms 21c are set facing each other on the left and right sides of the tapping seat 21a, and the limit platform 21c is preferably L-shaped.

[0028] The lifting and fixing assembly 23 is arranged above the moving clamp 21b and detachably clamps one end of the cutting tool rod 22. Specifically, the lifting and fixing assembly 23 includes a fixed sleeve 23a, a long driving gear 23b, a lifting seat 23c, a cylinder 23d and a self-balancing air valve 23e; one end of the fixed sleeve 23a is detachably connected to the cutting tool rod 22, specifically, a telescopic inner rod 23f is arranged in the fixed sleeve 23a, and a clamping seat 23g is embedded in one end of the fixed sleeve 23a. The clamping seat 23g includes a plurality of sector blocks 3g1 and an elastic member 3g2. The plurality of sector blocks 3g1 are arranged in a ring and form an inner ring with a diameter smaller than that of the cutting tool rod 22. One end of the cutting tool rod 22 can be movably inserted into the inner ring. After the tapping is completed, the telescopic inner rod 23f is extended to push the cutting tool rod 22 out of the clamping seat 23g. A gear 3a1 is provided around one side of the fixed sleeve 23a, and a long driving gear 23b meshes with the gear 3a1 and rotates the fixed sleeve 23a. The long driving gear 23b moves through the transmission between the gear sets, and its thickness is greater than the path of the cutting tool rod 22 to descend, so that the fixed sleeve 23a can still mesh with it during the descent process. The fixed sleeve 23a passes through the lifting seat 23c and is rotatably connected to it. The cylinder 23d is connected to the lifting seat 23c and controls its lifting. The self-balancing air valve 23e is connected to the air inlet of the cylinder 23d. When the cutting tool rod 22 is tapped in the nut, the self-balancing air valve 23e adjusts the extension force of the cylinder 23d to offset the action of the fixed sleeve 23a, the lifting seat 23c and the cutting tool rod 22. At this time, the descent of the cutting tool rod 22 is achieved by the action between the rotating cutting tool rod 22 and the nut.

[0029] The self-balancing air valve 23e includes a valve body 3e1, a piston 3e2, a motor 3e3, a sealing block 3e4 and a precision spring 3e5. A control groove 3e11 is provided in the valve body 3e1, and an air inlet 3e12 and an air outlet 3e13 are provided at the bottom and side wall of the control groove 3e11, respectively. The air inlet 3e12 is connected to the external air intake device and the cylinder 23d, and a sealing block 3e4 is provided on the air inlet 3e12. The piston 3e2 is provided in the control groove 3e11, and the precision spring 3e5 connects the sealing block 3e4 and the piston 3e2. The motor 3e3 is connected to the valve body 3e1 and drives the piston 3e2 to move in the control groove 3e11 to adjust the elastic force of the precision spring 3e5, maintain the air intake of the external air intake device, and adjust the extension and contraction force of the cylinder 23d by controlling the air outlet of the self-balancing air valve 23e.

[0030] The return assembly 24 is arranged below the tapping seat 21a. After the tapping is completed, the cutting tool bar 22 is separated from the lifting and fixing assembly 23 and passes through the mold through hole 1a1 to reach the return assembly 24. When the nut leaves the tapping seat 21a, the return assembly 24 rises to reload the cutting tool bar 22 into the fixing assembly 23. The return assembly 24 includes a receiving tube 24a and a lifting and driving member 24b. The receiving tube 24a is located below the mold through hole 1a1 and is connected to the lifting and driving member 24b. The lifting and driving member 24b moves the receiving tube 24a containing the cutting tool bar 22 through the mold through hole 1a1 and connects to the fixing sleeve 23a. In order to facilitate the waste material to fall during the tapping process, a chip removal hole can be set at the bottom of the receiving tube 24a, or the lifting and driving member 24b can be made to have a rotation function, so that the receiving tube 24a and the mold through hole 1a1 are staggered during tapping.

[0031] In order to realize the automatic tapping of the tapping machine, at least two storage tables 4 are provided on the other side of the tapping seat 21a, one of which can be used as a transfer table for feeding the tapping machine, which is connected to a conventional feeder, such as a vibrating feeder, etc.; the other storage table 4 is arranged in front of the mobile clamp 21b, so as to facilitate the front and rear clamping of the mobile clamp 21b. The feeding assembly 3 is set above the storage table 4 to realize the transportation of untapped nuts on different storage tables 4; the transportation method is: the feeding assembly 3 includes a travel track that can be moved left and right, and then an electric gripper that can be extended up and down is set on the formed track, and the opened gripper can abut against the inner ring of the nut, thereby grabbing and transporting the nut. In order to save the working stroke of the mobile clamp 21b, a lower hopper 11 is provided between the storage table 4 and the tapping seat 21a. When the mobile clamp 21b reaches above the lower hopper 11, the tapped nut is released, and then the mobile clamp 21b is further moved to hold the untapped nut on the storage table 4 to the top of the tapping seat 21a for tapping.

[0032] In order to realize the circulating cooling of the cutting tool bar 22, an automatic cutting liquid circulation system 5 is set, and the cutting liquid automatic circulation system includes a storage box 51 and a spray nozzle 52. The storage box 51 is arranged in the base 1, and the spray nozzle 52 is arranged on one side of the cutting tool bar. The storage box can be connected to the external pumping unit, the filter tank, the recovery box and the spray nozzle 52 in sequence, and through these devices, the storage box 51 can transport circulating cutting liquid into the spray nozzle 52. This equipment is equipped with automatic cutting liquid spraying, which is collected by the storage box 51, then refluxed and filtered, and finally sprayed out through the spray nozzle to cool and lubricate the cutter head, thereby increasing the service life of the tool and also improving the tapping quality.

[0033] The waste chips collection assembly 6 is a spiral conveying assembly, which is arranged in the storage box 51 and below the mold through hole 1a1 to realize the reception and output of waste chips.

[0034] Working principle: The untapped nut is placed on one of the storage tables 4, and then moved to the other storage table 4 under the action of the feeding device. The moving clamp 21b is started to grab the untapped nut to the top of the tapping seat 21a, and the long driving gear 23b and the cylinder 23d are started to drive the cutting rod 22 to rotate and descend until the bottom end of the cutting rod 22 contacts the nut. The self-balancing air valve 23e is started to adjust the downward force of the cylinder 23d. At this time, the cutting rod 22 taps the nut in the nut by virtue of the rotating thread. After the tapping is completed, the telescopic inner rod 23f is started to extend and eject the cutting rod 22 to fall into the return assembly 24, and then the mobile platform 1b1 moves forward until it reaches the top of the lower hopper 11, and the opening and closing seat 1b2 moves forward, so that the left clamp 1b3 and the right clamp 1b4 move back to back to release the tapped nut, and then the mobile platform 1b1 moves further forward until it reaches the storage table 4, and the opening and closing seat 1b2 moves backward, so that the left clamp 1b3 and the right clamp 1b4 move towards each other to clamp the untapped nut. During the tapping process, the spray nozzle 52 sprays cutting fluid to the cutting head position of the cutting rod 1a1.

[0035] It should be understood that the embodiments disclosed in the present invention are not limited to the specific processing steps or materials disclosed herein, but should be extended to equivalent substitutions of such features understood by ordinary technicians in the relevant field. It should also be understood that the terms used herein are only used for the purpose of describing specific embodiments and are not meant to be limiting.

[0036] The "embodiment" mentioned in the specification means that the specific features or characteristics described in conjunction with the embodiment are included in at least one embodiment of the present invention. Therefore, the phrases or "embodiment" appearing in various places throughout the specification do not necessarily refer to the same embodiment.

[0037] In addition, the described features or characteristics may be combined in one or more embodiments in any other suitable manner. In the above description, some specific details, such as thickness, quantity, etc., are provided to provide a comprehensive understanding of the embodiments of the present invention. However, those skilled in the relevant art will understand that the present invention can be implemented without one or more of the above specific details or can also be implemented using other methods, components, materials, etc.

Claims

1. A self-balancing tapping machine for nut processing, characterized in that: It comprises a base and at least one working group, which comprises a movable and fixed component, a cutting tool rod, a lifting and fixing component and a return component. The movable and fixed component comprises a tapping seat and a movable clamp. The tapping seat is penetrated by a mold through hole. The movable clamp is arranged above the tapping seat and is used to clamp a nut for movement and fixation. The lifting and fixing component is arranged above the movable clamp and detachably clamps one end of the cutting tool rod. The return component is arranged below the tapping seat. After the tapping is completed, the cutting tool rod is separated from the lifting and fixing component and passes through the mold through hole to reach the return component. When the nut leaves the tapping seat, the return component rises to reload the cutting tool rod into the lifting and fixing component.

2. The self-balancing tapping machine for nut processing according to claim 1, characterized in that: The lifting and fixing assembly includes a fixed sleeve, a long driving gear, a lifting seat, a cylinder and a self-balancing air valve. One end of the fixed sleeve is detachably connected to the cutting tool rod. A gear is arranged on one side of the fixed sleeve. The long driving gear meshes with the gear and causes the fixed sleeve to rotate. The fixed sleeve passes through the lifting seat and is rotatably connected thereto. The cylinder is connected to the lifting seat and controls its lifting. The self-balancing air valve is connected to the air inlet of the cylinder. When the cutting tool rod is tapping in the nut, the self-balancing air valve adjusts the extension force of the cylinder to offset the gravity of the fixed sleeve, the lifting seat and the cutting tool rod. At this time, the nut is cut by the rotating cutting tool rod and the tooth pitch of the tool rod is lowered to achieve transition-free cutting until completion.

3. The self-balancing tapping machine for nut processing according to claim 2, characterized in that: The self-balancing air valve includes a valve body, a piston, a motor, a sealing block and a precision spring. A control groove is provided in the valve body. An air inlet and an air outlet are respectively provided at the bottom and side walls of the control groove. The air inlet is connected to an external air intake device and the cylinder. A sealing block is provided on the air inlet. The piston is arranged in the control groove. The precision spring connects the sealing block and the piston. The motor is connected to the valve body and drives the piston to move in the control groove to realize elastic force adjustment of the precision spring, maintain the air intake amount of the external air intake device, and realize the adjustment of the extension and contraction force of the cylinder by controlling the air outlet of the self-balancing air valve.

4. The self-balancing tapping machine for nut processing according to claim 2, characterized in that: The lifting and fixing assembly also includes a telescopic inner rod. A clamping seat is embedded in one end of the fixing sleeve. The clamping seat includes a plurality of fan-shaped blocks and elastic members. The plurality of fan-shaped blocks are arranged in a ring to form an inner ring with a diameter smaller than that of the cutting tool rod. One end of the cutting tool rod can be movably inserted into the inner ring. The telescopic inner rod is arranged in the fixing sleeve. After the tapping is completed, the telescopic inner rod is extended to push the cutting tool rod out of the clamping seat.

5. The self-balancing tapping machine for nut processing according to claim 1, characterized in that: The movable clamp includes a movable platform, an opening and closing seat, a left clamp, a right clamp and a connecting rod. The movable platform is slidably arranged on one side of the tapping seat. The movable translation platform is respectively provided with a transverse slide rail and a longitudinal slide rail. The opening and closing seat is slidably connected to the longitudinal slide rail. One end of the left clamp and the right clamp are slidably connected to the transverse track. The other ends of the left clamp and the right clamp are provided with grooves corresponding to the shape of the nut facing each other. There are two connecting rods, one connecting rod is rotatably connected to the left clamp and the opening and closing seat, and the other connecting rod is rotatably connected to the right clamp and the opening and closing seat. Moving the opening and closing seat causes the left clamp and the right clamp to move toward or away from each other.

6. The self-balancing tapping machine for nut processing according to claim 1, characterized in that: It also includes a feeding assembly, and at least two storage tables are provided on the other side of the tapping seat. The feeding assembly is mounted above the storage tables to realize the transportation of untapped nuts on different storage tables; a lower hopper is provided between the storage tables and the tapping seat, and the mobile clamp releases the tapped nuts when it reaches above the lower hopper, and then further moves the untapped nuts on the clamping table to the top of the tapping seat for tapping.

7. The self-balancing tapping machine for nut processing according to claim 1, characterized in that: It also includes an automatic cutting fluid circulation system, which includes a storage box and a spray nozzle. The storage box is arranged in the base, and the spray nozzle is arranged on one side of the cutting tool rod. The spray nozzle is connected to the storage box through an external pipeline, and the storage box transports cutting fluid to the spray nozzle.

8. The self-balancing tapping machine for nut processing according to claim 7, characterized in that: It also includes a waste collection component, which is arranged in the storage box to realize the output of the waste in the storage box.

9. The self-balancing tapping machine for nut processing according to claim 2, characterized in that: The return assembly includes a receiving tube and a lifting drive member. The receiving tube is located below the through hole of the mold and is connected to the lifting drive member. The lifting drive member moves the receiving tube containing the cutting tool rod through the through hole of the mold to load the tap into the fixed sleeve.

10. The self-balancing tapping machine for nut processing according to claim 5, characterized in that: The movable fixing assembly also includes a limiting platform, and two limiting platforms are arranged on the left and right sides of the tapping seat facing each other to limit the other ends of the left clamp and the right clamp.

Images