Automatic forming machine suitable for leading-out end of large-specification piezoresistor

Abstract

The utility model discloses an automatic forming machine suitable for a leading-out end of a large-specification piezoresistor, which comprises a base, a supporting plate, a rotary table and a rotation driving mechanism capable of driving the rotary table to rotate, the supporting plate is arranged on the base through a stand column, and the rotation driving mechanism is arranged on the supporting plate. The rotary table is rotationally installed on the supporting plate and is in transmission connection with the power output end of the rotation driving mechanism. The device is characterized by further comprising a cylindrical rod and a guide roller, a slot capable of being matched with the cylindrical rod in an inserted mode is formed in the center of the rotary table, the cylindrical rod is inserted in the slot, the guide roller is vertically installed on the rotary table, and a gap allowing the leading-out end of the piezoresistor to pass through is formed between the guide roller and the cylindrical rod. According to the utility model, the leading-out end of the piezoresistor can be automatically wound into a circular ring, the labor cost is reduced, and the production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to an automatic forming machine, in particular to an automatic forming machine suitable for large-size varistor lead-out terminals. Background Art

[0002] The current varistor includes epoxy resin, a metallized silver layer and a ring-shaped dental lead; the top of the ring-shaped dental lead is a ring structure, and the ring-shaped dental lead is formed by superimposing two symmetrical circular rings using flux, and the ring-shaped dental lead is inserted into the metallized silver layer from the outside, and the ring-shaped dental lead and the metallized silver layer are tightly attached together, and epoxy resin covers the outside of the metallized silver layer. When processing the circular ring on the top of the ring-shaped dental lead, it is usually necessary to manually hold a cylindrical rod in one hand and a strip-shaped dental lead in the other hand, and bend one end of the strip-shaped dental lead around the circumferential surface of the cylindrical rod, thereby forming a circular ring on one end of the dental lead. This method of manually winding one end of the dental lead into a circular ring requires too high labor costs, low production efficiency, and cannot guarantee the consistency and accuracy of each circular ring, which affects the quality of the finished product. Utility Model Content

[0003] The problem to be solved by the utility model is to provide an automatic forming machine suitable for the lead-out ends of large-size varistor, which can automatically wind the lead-out ends of the varistor into a ring, thereby reducing labor costs and improving production efficiency.

[0004] In order to solve the above technical problems, the technical solutions adopted by the utility model are as follows:

[0005] An automatic forming machine suitable for large-size varistor lead-out ends, comprising a base, a support plate, a turntable and a rotating drive mechanism capable of driving the turntable to rotate, wherein the support plate is mounted on the base via a column, the rotating drive mechanism is mounted on the support plate, the turntable is rotatably mounted on the support plate and is transmission-connected to the power output end of the rotating drive mechanism; the machine is characterized in that it also comprises a cylindrical rod and a guide roller, the center of the turntable is provided with a slot capable of being plugged into and matched with the cylindrical rod, the cylindrical rod is plugged into the slot, the guide roller is vertically mounted on the turntable, and a gap is provided between the guide roller and the cylindrical rod for the lead-out end of the varistor to pass through.

[0006] During operation, one end of the dental lead wire (i.e., the lead end of the varistor) is first inserted into the gap between the guide roller and the cylindrical rod, and one end of the dental lead wire is extended outside the gap; then, the turntable is driven to rotate by the rotating drive mechanism, driving the guide roller on the turntable to rotate around the outer circumference of the cylindrical rod; then, as the guide roller rotates, the dental lead wire in the gap is pressed by the guide roller to bend around the circumferential surface of the cylindrical rod, and then a circular ring is automatically formed on one end of the dental lead wire; finally, the circular ring is taken out from the cylindrical rod, and then the turntable is driven to rotate in the opposite direction by the rotating drive mechanism, driving the guide roller to rotate in the opposite direction to reset to the initial position, waiting for the end of the next dental lead wire to extend into the gap between the guide roller and the cylindrical rod.

[0007] Usually, the above-mentioned rotation drive mechanism can adopt a rotating cylinder, which is mounted on a support plate, with the rotating shaft of the rotating cylinder arranged upward, and the turntable is mounted on the rotating shaft of the rotating cylinder. The above-mentioned rotation drive mechanism can also adopt a structure in which a driving motor, a driving wheel, a synchronous wheel and a synchronous belt cooperate with each other, wherein the driving motor, the driving wheel and the synchronous wheel are all mounted on the support plate, the driving wheel and the synchronous wheel jointly tension the synchronous belt, the driving wheel is connected to the output shaft of the driving motor by transmission, and the turntable is coaxially arranged with the synchronous wheel. The driving motor drives the driving wheel to rotate, and the driving wheel, the synchronous wheel and the synchronous belt cooperate to drive the turntable to rotate.

[0008] In a preferred embodiment, a first ball bearing is provided in the slot, the outer ring of the first ball bearing is tightly matched with the slot wall, the lower end of the cylindrical rod is inserted into the inner ring of the first ball bearing, and the circumferential surface of the lower end of the cylindrical rod is tightly matched with the inner ring of the first ball bearing. Through this arrangement, it is possible to ensure that the connection between the cylindrical rod and the slot is more firm and stable, reducing looseness and shaking during assembly. Since the cylindrical rod is tightly matched with the inner ring of the first ball bearing, friction and wear can be reduced, and the service life of the mechanical parts can be extended.

[0009] In a preferred embodiment, the guide roller includes a positioning column and at least one second ball bearing, the positioning column is vertically mounted on the turntable, the inner ring of the second ball bearing is sleeved on the positioning column, and the inner ring of the second ball bearing is tightly matched with the positioning column; the gap is set between the outer ring of the second ball bearing and the cylindrical rod. By using the positioning column and the second ball bearing, an accurate positioning point can be provided on the turntable. The tight fit between the inner ring of the second ball bearing and the positioning column can ensure the stability and accuracy of positioning.

[0010] In a further preferred embodiment, the positioning column is a positioning bolt, and the rod of the positioning bolt is provided with a smooth section and a threaded section from top to bottom in sequence. The turntable is provided with a screw hole matching the threaded section of the positioning bolt, and the threaded section of the positioning bolt is in the screw hole. The inner ring of the second ball bearing is mounted on the smooth section of the positioning bolt, and the inner ring of the second ball bearing is tightly fitted with the smooth section.

[0011] Compared with the prior art, the utility model has the following advantages:

[0012] The utility model can automatically wind the lead-out end of the varistor into a ring without much manual operation, thus reducing labor costs, improving production efficiency, and ensuring that the shape and size of each ring are consistent, thereby improving the quality and consistency of the finished product. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a three-dimensional structural schematic diagram of an embodiment of the utility model;

[0014] Figure 2 It is a structural schematic diagram of an embodiment of the utility model;

[0015] Figure 3 yes Figure 2 Top view of the . DETAILED DESCRIPTION

[0016] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0017] like Figure 1-3 As shown, the automatic forming machine suitable for large-size varistor lead-out terminals in this embodiment includes a base 1, a support plate 2, a turntable 3, a cylindrical rod 4, a guide roller 5 and a rotating drive mechanism 6 that can drive the turntable 3 to rotate, the support plate 2 is installed on the base 1 through a column, the rotating drive mechanism 6 is installed on the support plate 2, the turntable 3 is rotatably installed on the support plate 2 and is transmission-connected to the power output end of the rotating drive mechanism 6; the center of the turntable 3 is provided with a slot 31 that can be plugged into and matched with the cylindrical rod 4, the cylindrical rod 4 is plugged into the slot 31, the guide roller 5 is vertically installed on the turntable 3, and there is a gap 7 between the guide roller 5 and the cylindrical rod 4 for the varistor lead-out terminal 9 to pass through.

[0018] During operation, one end of the dental lead wire (i.e., the varistor lead end 9) is first inserted into the gap 7 between the guide roller 5 and the cylindrical rod 4, and one end of the dental lead wire is extended outside the gap 7; then, the turntable 3 is driven to rotate by the rotating drive mechanism 6, driving the guide roller 5 on the turntable 3 to rotate around the outer circumference of the cylindrical rod 4; then, as the guide roller 5 rotates, the dental lead wire in the gap 7 is pressed by the guide roller 5 to bend around the circumferential surface of the cylindrical rod 4, and then a circular ring is automatically formed on one end of the dental lead wire; finally, the circular ring is taken out from the cylindrical rod 4, and then the turntable 3 is driven to rotate in the opposite direction by the rotating drive mechanism 6, driving the guide roller 5 to rotate in the opposite direction to reset to the initial position, waiting for the end of the next dental lead wire to extend into the gap 7 between the guide roller 5 and the cylindrical rod 4.

[0019] Usually, the rotation driving mechanism 6 can be a rotary cylinder, which is mounted on the support plate 2, with the rotating shaft of the rotary cylinder facing upward, and the turntable 3 is mounted on the rotating shaft of the rotary cylinder.

[0020] The slot 31 is provided with a first ball bearing 8, the outer ring of the first ball bearing 8 is tightly matched with the slot wall of the slot 31, the lower end of the cylindrical rod 4 is inserted into the inner ring of the first ball bearing 8, and the circumferential surface of the lower end of the cylindrical rod 4 is tightly matched with the inner ring of the first ball bearing 8. Through this arrangement, it is possible to ensure that the connection between the cylindrical rod 4 and the slot 31 is more firm and stable, reducing looseness and shaking during the assembly process. Since the cylindrical rod 4 is tightly matched with the inner ring of the first ball bearing 8, friction and wear can be reduced, and the service life of the mechanical parts can be extended.

[0021] The guide roller 5 includes a positioning column 51 and at least one second ball bearing 52. The positioning column 51 is vertically mounted on the turntable 3. The inner ring of the second ball bearing 52 is sleeved on the positioning column 51, and the inner ring of the second ball bearing 52 is tightly matched with the positioning column 51. The gap 7 is set between the outer ring of the second ball bearing 52 and the cylindrical rod 4. By using the positioning column 51 and the second ball bearing 52, an accurate positioning point can be provided on the turntable 3. The tight fit between the inner ring of the second ball bearing 52 and the positioning column 51 can ensure the stability and accuracy of positioning.

[0022] The positioning column 51 is a positioning bolt 511, and the rod of the positioning bolt 511 is provided with a smooth section 512 and a threaded section 513 from top to bottom. The turntable 3 is provided with a screw hole 32 matching the threaded section 513 of the positioning bolt 511, and the threaded section 513 of the positioning bolt 511 is located in the screw hole 32. The inner ring of the second ball bearing 52 is sleeved on the smooth section 512 of the positioning bolt 511, and the inner ring of the second ball bearing 52 is tightly matched with the smooth section 512.

[0023] In addition, it should be noted that the names of the various parts of the specific embodiments described in this specification may be different, and any equivalent or simple changes made based on the structure, features and principles described in the utility model patent concept are included in the protection scope of the utility model patent. The technical personnel of the technical field to which the utility model belongs can make various modifications or supplements to the specific embodiments described or replace them in a similar manner, as long as they do not deviate from the structure of the utility model or exceed the scope defined by the claims, they should all fall within the protection scope of the utility model.

Claims

1. An automatic forming machine suitable for large-size varistor lead-out terminals, comprising a base, a support plate, a turntable and a rotation drive mechanism capable of driving the turntable to rotate, wherein the support plate is mounted on the base through a column, the rotation drive mechanism is mounted on the support plate, the turntable is rotatably mounted on the support plate and is transmission-connected to the power output end of the rotation drive mechanism; characterized in that: It also includes a cylindrical rod and a guide roller. The center of the turntable is provided with a slot that can be plugged into the cylindrical rod. The cylindrical rod is plugged into the slot. The guide roller is vertically installed on the turntable, and there is a gap between the guide roller and the cylindrical rod for the lead end of the varistor to pass through.

2. The automatic forming machine for large-size varistor lead-out terminals according to claim 1, characterized in that: A first ball bearing is provided in the slot, the outer ring of the first ball bearing is tightly matched with the slot wall, the lower end of the cylindrical rod is inserted into the inner ring of the first ball bearing, and the circumferential surface of the lower end of the cylindrical rod is tightly matched with the inner ring of the first ball bearing.

3. The automatic forming machine for large-size varistor lead-out terminals according to claim 1, characterized in that: The guide roller includes a positioning column and at least one second ball bearing, the positioning column is vertically installed on the turntable, the inner ring of the second ball bearing is sleeved on the positioning column, and the inner ring of the second ball bearing is tightly matched with the positioning column; the gap is set between the outer ring of the second ball bearing and the cylindrical rod.

4. The automatic forming machine for large-size varistor lead-out terminals according to claim 3, characterized in that: The positioning column is a positioning bolt, and the rod of the positioning bolt is provided with a smooth section and a threaded section from top to bottom in sequence. The turntable is provided with a screw hole matching the threaded section of the positioning bolt, and the threaded section of the positioning bolt is in the screw hole. The inner ring of the second ball bearing is sleeved on the smooth section of the positioning bolt, and the inner ring of the second ball bearing is tightly matched with the smooth section.

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