Pin cutting device for piezoresistor production

Abstract

The utility model discloses a pin cutting device for piezoresistor production, which comprises a machine base, two vertical mounting plates are arranged on the machine base in parallel, a resistor mounting seat is arranged on the mounting plates, a cutting assembly is arranged at the lower end of the resistor mounting seat, the resistor mounting seat comprises a horizontally arranged fixing plate, and the fixing plate is arranged on the machine base. A mounting groove is formed in the fixing plate, a pin insertion opening is formed in the bottom of the mounting groove, and the pin insertion opening extends downwards to be provided with a pin positioning pipe; the cutting assembly comprises a fixed tool apron arranged on one side of the pin positioning pipe, a cutting blade arranged on the other side of the pin positioning pipe in a sliding mode, an air cylinder used for controlling the cutting blade to conduct cutting and an air cylinder shaft. The pins of the piezoresistor are corrected by arranging the pin insertion port and the pin positioning tube, and then the cutting assembly is used for cutting the pins, so that the cutting precision is high.

Description

Technical Field

[0001] The utility model relates to the technical field of resistor production equipment, in particular to a pin cutting device for varistor production. Background Art

[0002] At present, with the rapid development and application of electronic technology products, the components contained therein are also developing rapidly and forming their own production chains. For example, the varistor elements used in pressure sensors form a series of production chains as the main components. After the varistor is processed and produced, the two pins of the varistor are longer or the lengths of the two pins are different during the processing and production process, so the pins need to be cut off.

[0003] In the prior art, the pins are generally cut off directly, but the pins of some resistors may be bent to a certain extent, and cutting off the pins at this time is prone to produce certain errors.

[0004] In view of the above problems, some improvements have been proposed in the prior art. For example, a Chinese patent with patent number CN 213729110 U discloses a resistor foot cutting machine, including a device body, a material receiving box, a waste storage box and a raw material storage box, characterized in that: a first transport rail and a second transport rail are installed on the upper surface of the device body, a transport bar hole is formed between the first transport rail and the second transport rail, a discharge port is arranged at the left end of the transport bar hole, a material receiving box is arranged below the discharge port, and a feed port is arranged at the right end of the transport bar hole. The utility model is a resistor foot cutting machine that optimizes the traditional way of driving and conveying resistors by vibration to install rotating wheels and conveying clamps in the transport surfaces of the first transport rail and the second transport rail, so that the resistor feet are clamped and transported forward by two clamps. However, a foot cutting machine with this structure can only limit the resistor feet perpendicular to the transport direction, and the resistor feet will still be tilted in the transport direction, and there will still be certain errors in the cutting process. Utility Model Content

[0005] Purpose of the utility model: In order to overcome the problems existing in the prior art, the utility model provides a pin cutting device for varistor production, which corrects the pins of the varistor by setting a pin insertion port and a pin positioning tube and then uses a cutting assembly to cut the pins, with high cutting accuracy.

[0006] In order to solve the above problems, the utility model adopts the following technical solutions:

[0007] A pin cutting device for producing varistor comprises a machine base, two vertical mounting plates are arranged in parallel on the machine base, a resistor mounting seat is arranged on the mounting plate, a cutting assembly is arranged at the lower end of the resistor mounting seat, the resistor mounting seat comprises a horizontally arranged fixing plate, a mounting groove is arranged on the fixing plate, a pin insertion opening is opened at the bottom of the mounting groove, a pin positioning tube is extended downward from the pin insertion opening; the cutting assembly comprises a fixed knife seat arranged on one side of the pin positioning tube, a cutting blade slidably arranged on the other side of the pin positioning tube, and a cylinder and a cylinder shaft for controlling the cutting blade to perform cutting.

[0008] Preferably, the diameter of the pin insertion opening gradually decreases from top to bottom.

[0009] Preferably, the cutting assembly further comprises a cutting seat, the cylinder is fixedly mounted on the cutting seat, and a lifting device for controlling the lifting of the cutting seat is mounted at the bottom of the machine base and the cutting seat.

[0010] Preferably, the lifting device includes a control motor and four first sliding bars, the first sliding bars are vertically fixed on the machine base, the bottom of the cutting seat is connected to the output end of the control motor, and the cutting seat is circumferentially provided with sliding holes for the first sliding bars to slide and connect.

[0011] Preferably, the mounting plate is provided with a scale for locating the length of the pin, and the cutting seat is provided with a scale block extending toward the scale.

[0012] Preferably, the cutting assembly also includes a buffer assembly, which includes a buffer seat, a buffer spring and a second sliding rod arranged between the cylinder shaft and the cutting blade, one end of the buffer seat is fixedly connected to the cylinder shaft; a buffer spring is fixedly connected between the middle of the other end and the cutting blade, and second sliding rods slidably connected to the cutting blade are arranged outward on both sides.

[0013] Preferably, a plurality of mounting grooves are arranged along a direction perpendicular to the moving direction of the cutting blade.

[0014] Preferably, a pin collection box is also provided below the cutting assembly.

[0015] Beneficial effects: Compared with the prior art, the utility model has the following advantages: the pins of the varistor are corrected by setting the pin insertion port and the pin positioning tube, and then the pins are cut by the cutting assembly, and the cutting accuracy is high. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 The three-dimensional Figure 1 ;

[0017] Figure 2 The three-dimensional Figure 2 ;

[0018] Figure 3 The three-dimensional Figure 3 ;

[0019] Figure 4 It is a three-dimensional diagram of the utility model in a cut-away state;

[0020] Figure 5 It is a three-dimensional diagram of the utility model in a cut-away state at the installation groove;

[0021] Among them: 1. Machine base; 11. First slide bar; 2. Mounting plate; 3. Resistor mounting seat; 31. Fixed plate; 32. Mounting slot; 33. Pin insertion port; 34. Pin positioning tube; 4. Cutting assembly; 41. Fixed knife seat; 42. Cutting blade; 43. Cylinder; 44. Cylinder shaft; 45. Cutting seat; 451. Scale block; 46. Control motor; 47. Buffer seat; 48. Buffer spring; 49. Second slide bar; 5. Scale; 6. Pin collection box. DETAILED DESCRIPTION

[0022] All features disclosed in this specification, or steps in all methods or processes disclosed, except mutually exclusive features and / or steps, can be combined in any manner.

[0023] Any feature disclosed in this specification (including any additional claims, abstracts and drawings), unless otherwise stated, may be replaced by other equivalent or alternative features with similar purposes. That is, unless otherwise stated, each feature is only an example of a series of equivalent or similar features.

[0024] like Figure 1-5 As shown, a pin cutting device for varistor production includes a machine base 1, two vertical mounting plates 2 are arranged in parallel on the machine base 1, a resistor mounting seat 3 is arranged on the mounting plate 2, a cutting assembly 4 is arranged at the lower end of the resistor mounting seat 3, the resistor mounting seat 3 includes a horizontally arranged fixing plate 31, a mounting groove 32 is arranged on the fixing plate, a pin insertion port 33 is opened at the bottom of the mounting groove 32, and a pin positioning tube 34 is extended downward from the pin insertion port 33; the cutting assembly 4 includes a fixed knife seat 41 arranged on one side of the pin positioning tube, a cutting blade 42 slidably arranged on the other side of the pin positioning tube, and a cylinder 43 and a cylinder shaft 44 for controlling the cutting blade to cut.

[0025] The pins of the varistor are corrected by setting a pin insertion port and a pin positioning tube, and then the pins are cut with a cutting component, with high cutting accuracy.

[0026] In this embodiment, the diameter of the pin insertion opening 33 gradually decreases from top to bottom, so as to facilitate the quick insertion of the inclined pins of the varistor.

[0027] In this embodiment, the cutting assembly 4 also includes a cutting seat 45, and the cylinder 43 is fixedly mounted on the cutting seat 45. A lifting device for controlling the lifting of the cutting seat is installed at the bottom of the machine base 1 and the cutting seat 45. This structure is used to facilitate the adjustment of the height of the cutting blade, thereby adjusting the cutting length of the pin.

[0028] In this embodiment, the lifting device includes a control motor 46 and four first slide bars 11. The first slide bars are vertically fixed on the machine base. The bottom of the cutting seat 45 is connected to the output end of the control motor. The cutting seat is circumferentially provided with sliding holes for the first slide bars 11 to slide and connect, so as to facilitate the stable up and down movement of the cutting assembly.

[0029] In this embodiment, the mounting plate 2 is provided with a scale 5 for locating the length of the pin, and the cutting seat 45 is provided with a scale block 451 extending toward the scale 5 for accurately locating the cutting length of the pin to facilitate adjustment by the staff.

[0030] In this embodiment, the cutting assembly 4 also includes a buffer assembly, which includes a buffer seat 47, a buffer spring 48 and a second slide rod 49 arranged between the cylinder shaft 44 and the cutting blade 42. One end of the buffer seat 47 is fixedly connected to the cylinder shaft 44; a buffer spring is fixedly connected between the middle of the other end and the cutting blade 42, and second slide rods slidably connected to the cutting blade 42 are arranged outward on both sides. This structure avoids rigid cutting and prevents the cutting blade and the fixed blade seat from being damaged by impact due to long-term rigidity. A limit block is provided at the end of the second slide rod 49 away from the cutting blade to limit the moving position of the buffer seat.

[0031] In this embodiment, a plurality of mounting grooves 32 are provided along a direction perpendicular to the moving direction of the cutting blade, so as to cut the pins of a plurality of varistors at one time.

[0032] In this embodiment, a pin collection box 6 is also provided below the cutting assembly 4 to facilitate the collection of the cut pins. The pin collection box adopts a drawer-type structure, and an opening is provided on a mounting plate on one side for installing the pin collection box. A handle for pulling is provided on one side of the pin collection box near the opening. The cross-section of the pin collection box is a trapezoid that is wide at the top and narrow at the bottom to facilitate collection.

[0033] The purpose of the above embodiments is to exemplarily reproduce and deduce the technical solution of the utility model, and to fully describe the technical solution, purpose and effect of the utility model. Its purpose is to make the public understand the disclosed content of the utility model more thoroughly and comprehensively, and it does not limit the protection scope of the utility model.

[0034] The above embodiments are not exhaustive enumerations based on the present invention, and there may be multiple other implementations not listed. Any replacement and improvement made without violating the concept of the present invention shall fall within the protection scope of the present invention.

Claims

1. A lead cutting device for varistor production, characterized in that: The invention comprises a machine base (1), two vertical mounting plates (2) are arranged in parallel on the machine base (1), a resistor mounting seat (3) is arranged on the mounting plate (2), a cutting assembly (4) is arranged at the lower end of the resistor mounting seat (3), the resistor mounting seat (3) comprises a horizontally arranged fixing plate (31), a mounting groove (32) is arranged on the fixing plate, a pin insertion opening (33) is provided at the bottom of the fixing groove (32), a pin positioning tube (34) is extended downward from the pin insertion opening (33); the cutting assembly (4) comprises a fixed blade seat (41) arranged on one side of the pin positioning tube, a cutting blade (42) slidably arranged on the other side of the pin positioning tube, a cylinder (43) and a cylinder shaft (44) for controlling the cutting blade to perform cutting.

2. A lead cutting device for varistor production according to claim 1, characterized in that: The diameter of the pin insertion opening (33) gradually decreases from top to bottom.

3. The lead cutting device for varistor production according to claim 1, characterized in that: The cutting assembly (4) further comprises a cutting seat (45), the cylinder (43) being fixedly mounted on the cutting seat (45), and a lifting device for controlling the lifting of the cutting seat is mounted on the machine base (1) at the bottom of the cutting seat (45).

4. A lead cutting device for varistor production according to claim 3, characterized in that: The lifting device comprises a control motor (46) and four first slide bars (11), wherein the first slide bars are vertically fixed on a machine base, the bottom of the cutting seat (45) is connected to the output end of the control motor, and the cutting seat is provided with sliding holes around which the first slide bars (11) are slidably connected.

5. The lead cutting device for varistor production according to claim 3, characterized in that: A scale (5) for locating the length of the pin is provided on the mounting plate (2), and a scale block (451) is provided on the cutting seat (45) extending toward the scale (5).

6. A lead cutting device for varistor production according to claim 1, characterized in that: The cutting assembly (4) also includes a buffer assembly, which includes a buffer seat (47) arranged between the cylinder shaft (44) and the cutting blade (42), a buffer spring (48) and a second slide rod (49), one end of the buffer seat (47) is fixedly connected to the cylinder shaft (44); a buffer spring is fixedly connected between the middle of the other end and the cutting blade (42), and second slide rods slidably connected to the cutting blade (42) are arranged outwardly on both sides.

7. The lead cutting device for varistor production according to claim 1, characterized in that: A plurality of mounting grooves (32) are arranged perpendicular to the moving direction of the cutting blade.

8. The lead cutting device for varistor production according to claim 1, characterized in that: A pin collection box (6) is also provided below the cutting assembly (4).

Images