Method for adjusting the position of feeding rod of nut conveyor

Abstract

The present invention relates to the field of automation equipment technology, and specifically discloses a method for adjusting the position of a feed rod of a nut conveyor, which requires the use of a position gauge, which is provided with height detection surfaces, offset detection surfaces and angle detection surfaces that are perpendicular to each other; the position gauge is also provided with a positioning cavity, which has an arc positioning surface, which is coaxial with a positioning pin, and the offset detection surface is located at the center of the arc positioning surface, and the distance between the angle detection surface and the center of the arc positioning surface is equal to the radius of the feed rod; the end of the feed rod is provided with a guide surface; the specific adjustment steps are as follows: S1, installing the position gauge: putting the position gauge on the electrode holder; S2, adjusting the position of the feed rod so that the end of the feed rod can be attached to the upper height detection surface, the circumferential side of the feed rod is attached to the angle detection surface, and the edge of the guide surface of the end of the feed rod is attached to the offset detection surface; S3, fixing the feed gun. This scheme is used to solve the problem that the adjustment of the position of the feed rod takes a long time and affects the production efficiency of the enterprise.

Description

Technical Field

[0001] The invention relates to the technical field of automation equipment, and in particular to a method for adjusting the position of a feeding rod of a nut conveyor. Background Art

[0002] In the production process of metal parts, it is often necessary to use a spot welder to weld nuts on the workpiece. In traditional nut welding, it is necessary to manually pick up and place the nuts, and then manually weld the nuts. With the development of mechanical automation, a nut conveyor has appeared to cooperate with a spot welder to complete the rapid welding of nuts. Specifically, the nut conveyor includes a vibrating plate and a nut distributor. The vibrating plate neatly arranges the nuts and sends them to the nut distributor. The nut distributor is provided with a feeding pipe and an inclined feeding gun. The neatly arranged nuts are fed into the feeding gun through the feeding pipe, and the feeding gun is provided with a cylinder and a feeding rod (also called a push rod). Each time the cylinder is started, the feeding rod is driven to extend from the feeding gun. Each time the cylinder is extended, the nut is discharged from the inclined feeding gun along the feeding rod. After the nut is discharged from the feeding rod, it falls on the positioning pin on one side of the end of the feeding rod. The workpiece to be welded is covered at the location of the positioning pin. The nut falls on the workpiece along the positioning pin. Finally, the feeding rod is retracted and the spot welder is started to complete the welding of the nut and the workpiece. In this process, to ensure that the feeding rod accurately delivers the nut to the positioning pin, the end of the extended feeding rod needs to be aligned with the positioning pin on the spot welding machine, but cannot touch the positioning pin.

[0003] However, in actual use, the repeated movement of the cylinder and the feeding rod inside the feeding gun may wear the cylinder seal or the guide hole of the feeding rod, resulting in the feeding rod being stuck when extending or shaking when feeding. The feeding gun (including the cylinder and the feeding rod) needs to be disassembled for component replacement or repair, which inevitably moves the position of the feeding rod, causing the relative position of the feeding rod and the positioning pin to change. In addition, during the spot welding process, the electrode holder that fixes the locating pin on the spot welding machine may be worn and need to be replaced, or the locating pin may drop in height after repeated use (a spring with a vertical deformation direction is installed at the bottom of the locating pin). At this time, the relative position between the locating pin and the feeding rod also changes; and as long as the relative position of the feeding rod and the locating pin changes, the nut cannot be accurately delivered to the locating pin, so the position of the feeding rod must be adjusted again to ensure that the nut is accurately delivered to the locating pin. This adjustment seems simple, but because the tilt position of the feeding rod can be moved and adjusted at will, and the top of the locating pin is conical, it is difficult to align the centers of the two. At the same time, if the height difference between the two is too small or too large, it will affect the use (if the distance is too small, the feeding rod is easy to hit the locating pin, and if the distance is too large, the nut cannot accurately fall to the locating pin), resulting in the actual adjustment process generally taking about 45 minutes. During the adjustment process, it is necessary to repeatedly test the machine (that is, repeatedly start the nut distributor to extend the feeding rod) and repeatedly adjust the installation position of the feeding rod to ensure the subsequent normal nut welding. The long adjustment time seriously affects the production efficiency of the enterprise. Summary of the invention

[0004] The present invention aims to provide a method for adjusting the position of a feeding rod of a nut conveyor, so as to solve the problem that the adjustment of the position of the feeding rod takes a long time and affects the production efficiency of the enterprise.

[0005] In order to achieve the above object, the present invention adopts the following technical scheme:

[0006] The method for adjusting the position of the feed rod of the nut conveyor requires the use of a position gauge, which is provided with height detection surfaces, offset detection surfaces and angle detection surfaces that are perpendicular to each other. The height detection surface includes a horizontal upper height detection surface and a lower height detection surface, and the offset detection surface and the angle detection surface are both arranged vertically; the position gauge is also provided with a positioning cavity for sleeved electrode holder, the positioning cavity has an arc positioning surface, the arc positioning surface is coaxial with the positioning pin, the offset detection surface is located at the center of the arc positioning surface, and the distance between the angle detection surface and the center of the arc positioning surface is equal to the radius of the feed rod; before adjustment, ensure that the end of the feed rod is provided with a guide surface, and one of the edges of the guide surface passes through the radial direction of the end of the feed rod; the specific adjustment steps are as follows:

[0007] S1. Install the position gauge: Put the position gauge on the electrode holder through the positioning cavity so that the positioning pin contacts the lower height detection surface or there is a gap of less than 0.05mm;

[0008] S2. Adjust the feeding rod: adjust the feeding rod so that the end of the feeding rod can be in contact with the upper height detection surface, the circumferential side of the feeding rod can be in contact with the angle detection surface, and the guide edge of the end of the feeding rod can be in contact with the offset detection surface;

[0009] S3, fixed feeding gun.

[0010] The principle and advantage of this solution are: in actual application, this solution is provided with a height detection surface, an offset detection surface and an angle detection surface, so that when the feed rod is adjusted, the feed rod can be in contact with each detection surface, that is, the up and down, left and right, and front and back positions of the feed rod are determined, and the simultaneous definition of multiple detection surfaces allows the end center of the feed rod to intersect with the center line of the positioning pin, and the distance between the feed rod and the positioning pin can be controlled, which greatly improves the adjustment speed of the feed rod, and shortens the adjustment time of the feed rod from about 45 minutes to about 10 minutes, solving the problem that the time-consuming position adjustment of the feed rod affects the production efficiency of the enterprise.

[0011] Preferably, as an improvement, the position detection fixture is provided with a detection slot, the angle detection surface is the bottom surface of the detection slot, the angle between the two side surfaces of the detection slot and the horizontal plane is in the range of 30°-55°, and the inclination angle of the upper side surface of the detection slot is not less than the inclination angle of the lower side surface. This solution can further reduce the difficulty of adjusting the feeding rod and ensure the accuracy of the adjustment.

[0012] Preferably, as an improvement, in step S2, when the circumferential side surface of the feeding rod is in contact with the angle detection surface, the feeding rod is located in the middle of the detection slot.

[0013] Preferably, as an improvement, the position gauge includes a gauge seat, a positioning cavity is arranged on the gauge seat, the positioning cavity is U-shaped, a door plate is rotatably connected to the gauge seat, the door plate can face the U-shaped opening end of the positioning cavity, the door plate cooperates with the positioning cavity to enclose the electrode seat, and a locking piece is arranged between the free end of the door plate and the gauge seat;

[0014] In step S1, the door panel is first opened, the positioning cavity of the gauge seat is attached to the electrode seat, and then the door panel is rotated, and finally the door panel is locked on the gauge seat by using a locking member.

[0015] Beneficial effects: By setting up the door panel, it is convenient to disassemble and assemble the gauge seat on the electrode seat, and at the same time ensure that the center of the positioning surface of the installed gauge seat is coaxial with the positioning pin, that is, to ensure the accuracy of the installation. At the same time, the open-door installation method will not cause wear on the circumferential surface of the electrode seat. In addition, the setting of the door panel reduces the contact area between the position gauge and the electrode seat, which facilitates the overall rotation of the position gauge; the specific usage scenario is: when the feed rod is not convenient to adjust significantly, the gauge seat can be rotated to rotate the entire position gauge, so that the position gauge can be coordinated with the position of the feed rod, reducing the adjustment range of the feed rod and reducing the difficulty of adjustment.

[0016] Preferably, as an improvement, the locking member comprises a rotating column and a locking column which are perpendicular to each other and fixedly connected, a nut is threadedly connected to the locking column, a notch is provided on the door panel for the locking column to pass through, and the nut can be tightened against the door panel.

[0017] This solution facilitates the fixed connection between the door panel and the inspection fixture seat through the design of the locking column and the nut, and improves the convenience of operation.

[0018] Preferably, as an improvement, a vertical adjustment bolt is threadedly connected to the position detection fixture, and the bottom of the adjustment bolt can abut against the upper end surface of the electrode holder;

[0019] In the step S1, when the position detection fixture is put on the electrode holder, the adjustment bolt is screwed so that the lower height detection surface gradually approaches the top of the positioning pin until the distance between the two is no more than 0.05 mm.

[0020] Beneficial effects: In actual applications, due to the presence of a vertically deformed spring between the locating pin and the electrode holder, the top height of the locating pin will change during use, making it difficult to adjust. However, this solution can adjust the distance between the lower height detection surface and the locating pin through the design of the adjustment bolt, ensuring that the locating pin will not adjust the position of the feed rod under pressure, thereby improving the accuracy of the adjustment and the practicality of this position gauge.

[0021] Preferably, as an improvement, after the step S1 is completed, the distance between the upper height detection surface and the positioning pin is not greater than 1 mm. When this solution is adopted, by limiting the distance of the height detection surface, after the position of the feed rod is adjusted, the minimum distance between the feed rod and the positioning pin is basically controlled to be about 1 mm, ensuring that the feed rod not only intersects with the center line of the positioning pin at the center of the end, but also ensures that the feed rod is as close to the positioning pin as possible, thereby improving the accuracy of nut feeding.

[0022] Preferably, as an improvement, it also includes an adjustment seat for supporting the feeding gun, an L-shaped transfer rod is provided between the adjustment seat and the feeding gun, one section of the L-shaped transfer rod can move axially on the adjustment seat, the other section of the L-shaped transfer rod is perpendicular to the feeding gun, and an transfer seat is provided between the L-shaped transfer rod and the feeding gun, the L-shaped transfer rod can move along its own axial direction, and the feeding gun can also move along its own axial direction; in the step S2, the position adjustment of the feeding rod can be achieved by adjusting the position of the L-shaped transfer rod and the feeding gun.

[0023] This solution uses the design of the L-shaped adapter rod, adjustment seat and adapter seat to make the two sections of the L-shaped adapter rod and the feeding gun perpendicular to each other, which facilitates the adjustment of the feeding gun in space and thus realizes the position adjustment of the feeding rod.

[0024] Preferably, as an improvement, the L-shaped transfer rod is circular in shape, and the transfer seat is provided with two mutually perpendicular clamping plates, each of which includes two clamping pieces, and arc surfaces are provided on the opposite surfaces of the clamping pieces, and the two clamping pieces can adjust the clamping force by screws, one clamping plate is used to clamp the L-shaped transfer rod through the arc surface, and the other clamping plate is used to clamp the feeding gun through the arc surface;

[0025] In the step S3, after the position of the feeding rod is adjusted, the relative clamping pieces are clamped to the feeding gun or the L-shaped adapter rod by screws.

[0026] Through the setting of relative clamps, this solution makes the position adjustment of the adapter rod and the feeding gun simpler and more convenient (only the clamps clamped by the screws need to be loosened to make axial adjustments to the adapter rod or the feeding gun). At the same time, the cross-section of the adapter rod is circular, so that the adapter rod can also rotate on its own, which increases the position adjustment methods of the feeding gun and further reduces the difficulty of adjusting the position of the feeding rod on the feeding gun. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the structure of an embodiment of the present invention when the door panel is in an open state.

[0028] Figure 2 This is a front view of an embodiment of the present invention when the door panel is in a closed state and the feed rod is in an aligned position.

[0029] Figure 3 It is a left sectional view of an embodiment of the present invention when the door panel is in a closed state and the feed rod is in an aligned position.

[0030] Figure 4 Schematic diagram of the structure of the inspection fixture base in the embodiment of the present invention.

[0031] Figure 5 Schematic diagram of the structure of the height limiting block in an embodiment of the present invention.

[0032] Figure 6Schematic diagram of the structure of the angle detection block in an embodiment of the present invention.

[0033] Figure 7 It is a schematic diagram of the connection relationship between the feeding gun, the feeding rod, the transfer rod and the adjustment seat in the embodiment of the present invention.

[0034] Figure 8 It is a schematic structural diagram of the feeding gun and the transfer rod before and after being taken out from the transfer seat and the adjustment seat in the embodiment of the present invention.

[0035] Fig. 9 Schematic diagram of the structure after the feed rod and the positioning pin are aligned in an embodiment of the present invention, (a) and (b) are schematic diagrams from different viewing angles. DETAILED DESCRIPTION

[0036] The following is further described in detail through specific implementation methods:

[0037] The figure marks in the drawings of the specification include: a gauge seat 1, an arc positioning surface 11, an adjustment protrusion 12, a height limit block 2, an upper height detection surface 21, an offset detection surface 22, a U-shaped positioning protrusion 23, a lower height detection surface 24, an angle detection block 3, an angle detection surface 31, an adjustment bolt 4, a door panel 5, a locking piece 6, a locking column 61, a nut 62, an adjustment seat 7, an adapter rod 8, an adapter seat 9, a clip 91, a feed rod 10, a guide surface 101, a positioning pin 20, an electrode seat 30, and a feed gun 40.

[0038] The embodiment is basically as shown in the attached Figures 1 to 9 As shown, the method for adjusting the position of the feed rod of the nut conveyor requires the use of a position gauge, which is provided with a height detection surface, an offset detection surface 22 and an angle detection surface 31 that are perpendicular to each other. The height detection surface includes a horizontal upper height detection surface 21 and a lower height detection surface 24. The offset detection surface 22 and the angle detection surface 31 are both vertically arranged; the upper height detection surface 21 is located directly above the lower height detection surface 24, and the spacing between the two height detection surfaces is not greater than 0.8 mm. In this embodiment, the spacing between the two is set to 0.8 mm. The upper height detection surface 21 is used to limit the bottom position of the feed rod 10, and the lower height detection surface 24 is used to limit the top position of the positioning pin 20.

[0039] Combination Figure 1The position gauge is also provided with a positioning cavity for housing the electrode holder 30. The positioning cavity has an arc positioning surface 11, which is coaxial with the positioning pin 20. The lower height detection surface 24 is located at the top of the positioning cavity. The offset detection surface 22 is located at the center of the arc positioning surface 11. The distance between the angle detection surface 31 and the center of the arc positioning surface 11 is equal to the radius of the feed rod 10. The end of the feed rod 10 used in this embodiment is processed with a guide surface 101, and one of the edges of the guide surface 101 passes through the radial direction of the end of the feed rod 10. The guide surface 101 is an inclined surface or an arc surface. The offset detection surface 22 is used to limit the position where the feed rod 10 extends from the side of the positioning pin 20. The angle detection surface 31 is used to limit the angle between the feed rod 10 and the positioning pin 20.

[0040] In order to facilitate the processing and forming of the position gauge, the position gauge is mainly composed of a gauge seat 1, a height limit block 2 and an angle detection block 3. The height limit block 2 and the angle detection block 3 are fixedly connected to the gauge seat 1. The specific structure is as follows:

[0041] Combination Figure 4 A positioning cavity for a position gauge is processed on the gauge seat 1. The positioning cavity is U-shaped to facilitate the gauge seat 1 to be mounted on the electrode seat 30. The U-shaped corner of the positioning cavity is an arc positioning surface 11 that can be attached to the circumferential surface of the electrode seat 30. The arc positioning surface 11 is coaxial with the positioning pin 20 and is a semicircular arc surface.

[0042] The inspection fixture seat 1 is rotatably connected with a door panel 5, which can face the U-shaped opening end of the positioning cavity. The door panel 5 cooperates with the positioning cavity to enclose the electrode seat 30. A locking member 6 is provided between the free end of the door panel 5 and the inspection fixture seat 1. The locking member 6 is used to press the door panel 5 against the electrode seat 30. The locking member 6 includes a rotating column and a locking column 61 that are perpendicular to each other and fixedly connected. The rotating column is rotatably connected to the inspection fixture seat 1. The locking column 61 is horizontally arranged. A nut 62 is threadedly connected to the locking column 61. A notch is provided on the door panel 5 for the locking column 61 to pass through. The nut 62 can be pressed against the door panel 5. By providing the door panel 5, the disassembly and assembly of the inspection fixture seat 1 on the electrode seat 30 is facilitated, and at the same time, the center of the positioning surface of the installed inspection fixture seat 1 is ensured to be coaxial with the positioning pin 20, that is, the accuracy of the installation is ensured. At the same time, the open-door installation method will not cause wear to the circumferential surface of the electrode seat 30. In addition, the provision of the door panel 5 reduces the contact area between the position gauge and the electrode holder 30, facilitating the overall rotation of the position gauge. The specific usage scenario is: when the feed rod 10 is not convenient to adjust significantly, the gauge holder 1 can be rotated to rotate the entire position gauge, thereby allowing the position gauge to cooperate with the position of the feed rod 10, reducing the adjustment range of the feed rod 10 and reducing the difficulty of adjustment.

[0043] The gauge seat 1 is machined with an adjustment protrusion 12, which is blocked at the top of the positioning cavity, and a U-shaped groove coaxial with the arc positioning surface 11 is machined on the adjustment protrusion 12. A vertical adjustment bolt 4 is threadedly connected to the adjustment protrusion 12, which passes through the adjustment protrusion 12 and can abut against the upper end surface of the electrode seat 30.

[0044] Combination Figure 5 A U-shaped positioning protrusion 23 is processed on the height limit block 2, and the outer surface of the U-shaped positioning protrusion 23 is in contact with the U-shaped groove on the adjustment protrusion 12. The internal space of the U-shaped positioning protrusion 23 is used to accommodate the positioning pin 20, so that the height limit block 2 can be positioned by the U-shaped positioning protrusion 23 and then installed on the inspection fixture seat 1.

[0045] The horizontal upper height detection surface 21 and the lower height detection surface 24 are both processed on the height limit block 2 . The lower height detection surface 24 is located at the top of the U-shaped positioning protrusion 23 , and the upper height detection surface 21 is located directly above the lower height detection surface 24 .

[0046] A vertical offset detection surface 22 is also machined on the height limit block 2. The offset detection surface 22 is perpendicular to the upper height detection surface 21 and is located at the center of the arc positioning surface 11. When the edge of the guide surface 101 of the feed rod 10 abuts against the offset detection surface 22, the edge of the feed rod 10 is parallel to the offset detection surface 22 and intersects with the center extension line of the positioning pin 20.

[0047] Combination Figure 6 The angle detection block 3 is fixed on one side of the gauge seat 1. A detection slot is machined on the angle detection block 3. The opening of the detection slot faces the offset detection surface 22 and the upper height detection surface 21. The bottom surface of the detection slot is the angle detection surface 31 (and the two side surfaces of the detection slot form a limit on the moving space of the feed rod 10). The angle detection surface 31 is perpendicular to the upper height detection and offset detection surfaces 22. The distance between the angle detection surface 31 and the center of the arc positioning surface 11 is equal to the radius of the feed rod 10. The setting of the angle detection block 3 is convenient for the feed rod 10 to simultaneously abut against the offset detection surface 22 and the upper height detection surface 21 after passing through the detection slot.

[0048] The angle between the two side surfaces of the detection slot and the horizontal plane is in the range of 30°-55°, and the inclination angle of the upper side surface of the detection slot is not less than the inclination angle of the lower side surface. In this embodiment, the angle between the upper side surface of the detection slot and the horizontal plane is 55°, and the angle between the lower side surface of the detection slot and the horizontal plane is 30°.

[0049] To simplify the adjustment of the feeding rod 10, an adjustment seat 7 is fixed on the welding machine, and an L-shaped adapter rod 8 is provided between the adjustment seat 7 and the feeding gun 40. The shape of the L-shaped adapter rod 8 and the feeding gun 40 are both circular. One section of the L-shaped adapter rod 8 can move axially on the adjustment seat 7, and the other section of the L-shaped adapter rod 8 is perpendicular to the feeding gun 40. A adapter seat 9 is provided between the L-shaped adapter rod 8 and the feeding gun 40. The L-shaped adapter rod 8 can move along its own axial direction, and the feeding gun 40 can also move along its own axial direction.

[0050] Combination Figure 7 and Figure 8 The adapter seat 9 is provided with two mutually perpendicular clamps, and the adjustment seat 7 is also provided with a clamp with the same structure as that on the adapter seat 9, each clamp includes two clips 91, and arc surfaces are provided on the opposite surfaces of the clips 91. The two clips 91 can adjust the clamping force by screws, and one clamp of the adapter seat 9 is used to clamp the L-shaped adapter rod 8 through the arc surface, and the other clamp of the adapter seat 9 is used to clamp the feeding gun 40 through the arc surface; the clamp on the adjustment seat 7 clamps the remaining section of the L-shaped adapter rod 8.

[0051] The method for adjusting the position of the nut 62 conveyor feed rod 10 is as follows:

[0052] S1. Install the position gauge: first retract the feed rod 10 into the feed gun 40, and then put the position gauge on the electrode holder 30 through the positioning cavity of the gauge seat 1, so that the arc positioning surface 11 of the positioning cavity is in contact with the circumference of the electrode holder 30; then screw the adjusting bolt 4, so that the lower height detection surface 24 gradually approaches the top of the positioning pin 20, until the distance between the two is no more than 0.05mm; then rotate the door panel 5, and attach the door panel 5 to the circumferential surface of the electrode holder 30, rotate the rotating column of the locking piece 6, so that the locking column 61 is inserted into the notch of the door panel 5, and finally screw the nut 62 of the locking piece 6, so that the door panel 5 and the gauge seat 1 are firmly connected.

[0053] S2. Adjust the feeding rod 10: control the feeding gun 40 so that the feeding rod 10 extends from the feeding gun 40, and then adjust the positions of the L-shaped adapter rod 8 and the feeding gun 40 on the adapter seat 9 and the adjustment seat 7 so that the bottom edge of the end of the feeding rod 10 is in contact with the upper height detection surface 21, the circumferential side surface of the feeding rod 10 is in contact with the angle detection surface 31, and the edge of the guide surface 101 at the end of the feeding rod 10 is in contact with the offset detection surface 22; wherein when the circumferential side surface of the feeding rod 10 is in contact with the angle detection surface 31, the feeding rod 10 is located in the middle of the detection slot; during the adjustment process, in order to reduce the adjustment range of the feeding rod 10, the entire position gauge can be rotated (because the door panel 5 and the positioning cavity are only in contact with the electrode seat 30, the entire position gauge can be rotated on the electrode seat 30) to make the initial position of the feeding rod 10 closest to the position to be adjusted, thereby reducing the difficulty of adjustment.

[0054] S3, after completing step S2, that is, reaching the Figure 2 and Figure 3 As shown in the state, the relative clips 91 are then clamped with screws to clamp the feeding gun 40 or the L-shaped transfer rod 8 to complete the fixation of the feeding gun 40, and finally the feeding rod 10 is retracted into the feeding gun 40.

[0055] S4, after the position adjustment of the feeding rod 10 is completed, the door panel 5 is opened, and the position gauge is removed from the electrode holder 30 to achieve the following Fig. 9 shown.

[0056] When the position of the feed rod 10 is adjusted by using the present embodiment, since the target position (upper and lower positions, left and right positions, and front and back positions) of the feed rod 10 is determined by the height detection surface (including the upper height detection surface 21 and the lower height detection surface 24), the offset detection surface 22, and the angle detection surface 31, as long as the feed rod 10 is extended once, the adjustment method of the feed rod 10 can be known, and the feed rod 10 can be quickly adjusted. After the adjustment is completed, the feed gun 40 can be fixed. There is no need for repeated testing of the feed rod 10 and repeated adjustment of the installation position of the feed rod 10 in the prior art. The original adjustment time of about 45 minutes is shortened to about 10 minutes, which greatly reduces the adjustment time and solves the problem of affecting the production efficiency of the enterprise due to the long time spent on the position adjustment of the feed rod 10.

[0057] The above is only an embodiment of the present invention, and the common knowledge such as the known specific technical solutions and / or characteristics in the solution is not described in detail here. It should be pointed out that for those skilled in the art, without departing from the technical solution of the present invention, several modifications and improvements can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. A method for adjusting the position of a feeding rod of a nut conveyor, characterized in that: A position gauge is required. The position gauge is provided with height detection surfaces, offset detection surfaces and angle detection surfaces that are perpendicular to each other. The height detection surface includes a horizontal upper height detection surface and a lower height detection surface. The offset detection surface and the angle detection surface are both arranged vertically. The position gauge is also provided with a positioning cavity for housing the electrode holder. The positioning cavity has an arc positioning surface. The arc positioning surface is coaxial with the positioning pin. The offset detection surface is located at the center of the arc positioning surface. The distance between the angle detection surface and the center of the arc positioning surface is equal to the radius of the feed rod. Before adjustment, ensure that the end of the feed rod is provided with a guide surface, and one of the edges of the guide surface passes through the radial direction of the end of the feed rod. The specific adjustment steps are as follows: S1. Install the position gauge: Put the position gauge on the electrode holder through the positioning cavity so that the positioning pin contacts the lower height detection surface or there is a gap within 0.05mm; S2. Adjust the feeding rod: adjust the position of the feeding rod so that the end of the feeding rod can be in contact with the upper height detection surface, the circumferential side of the feeding rod can be in contact with the angle detection surface, and the edge of the guide surface of the end of the feeding rod can be in contact with the offset detection surface; S3, fixed feeding gun.

2. The method for adjusting the position of a feeding rod of a nut conveyor according to claim 1, characterized in that: The position detection fixture is provided with a detection slot, the angle detection surface is the bottom surface of the detection slot, the angle between the two side surfaces of the detection slot and the horizontal plane ranges from 30° to 55°, and the inclination angle of the upper side surface of the detection slot is not less than the inclination angle of the lower side surface.

3. The method for adjusting the position of a feeding rod of a nut conveyor according to claim 2, characterized in that: In the step S2, when the circumferential side surface of the feeding rod is in contact with the angle detection surface, the feeding rod is located in the middle of the detection slot.

4. The method for adjusting the position of a feeding rod of a nut conveyor according to claim 1, characterized in that: The position gauge comprises a gauge seat, a positioning cavity is arranged on the gauge seat, the positioning cavity is U-shaped, a door plate is rotatably connected to the gauge seat, the door plate can face the U-shaped opening end of the positioning cavity, the door plate cooperates with the positioning cavity to enclose the electrode seat, and a locking piece is arranged between the free end of the door plate and the gauge seat; In step S1, the door panel is first opened, the positioning cavity of the gauge seat is attached to the electrode seat, and then the door panel is rotated, and finally the door panel is locked on the gauge seat by using a locking member.

5. The method for adjusting the position of a feeding rod of a nut conveyor according to claim 4, characterized in that: The locking member comprises a rotating column and a locking column which are perpendicular to each other and fixedly connected. A nut is threadedly connected to the locking column. A notch is provided on the door panel for the locking column to pass through. The nut can be pressed against the door panel.

6. The method for adjusting the position of a feeding rod of a nut conveyor according to claim 1, characterized in that: The position checker is threadedly connected with a vertical adjustment bolt, and the bottom of the adjustment bolt can abut against the upper end surface of the electrode holder; In the step S1, when the position detection fixture is put on the electrode holder, the adjustment bolt is screwed so that the lower height detection surface gradually approaches the top of the positioning pin until the distance between the two is no more than 0.05 mm.

7. The method for adjusting the position of a feeding rod of a nut conveyor according to claim 1, characterized in that: After the step S1 is completed, the distance between the upper height detection surface and the positioning pin is no greater than 1 mm.

8. The method for adjusting the position of a feeding rod of a nut conveyor according to claim 1, characterized in that: It also includes an adjustment seat for supporting the feeding gun, an L-shaped transfer rod is provided between the adjustment seat and the feeding gun, one section of the L-shaped transfer rod can move axially on the adjustment seat, the other section of the L-shaped transfer rod is perpendicular to the feeding gun and a transfer seat is provided between the other section of the L-shaped transfer rod and the feeding gun, the L-shaped transfer rod is circular in shape, and two mutually perpendicular clamping plates are provided on the transfer seat, each clamping plate includes two clamping pieces, arc surfaces are provided on the opposite surfaces of the clamping pieces, and the clamping force of the two clamping pieces can be adjusted by screws, one clamping plate is used to clamp the L-shaped transfer rod through the arc surface, and the other clamping plate is used to clamp the feeding gun through the arc surface; In step S2, the position adjustment of the feeding rod can be achieved by adjusting the positions of the L-shaped adapter rod and the feeding gun.

9. The method for adjusting the position of a feeding rod of a nut conveyor according to claim 8, characterized in that: In the step S3, after the position of the feeding rod is adjusted, the relative clamping pieces are clamped to the feeding gun or the L-shaped adapter rod by screws.

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