Up-down cutting device of four-axis volute spiral spring machine

Abstract

The utility model discloses a four-axis volute spiral spring machine up-down cutting device which comprises a volute spiral spring machine body, a lifting driving assembly is installed on the top of the volute spiral spring machine body, and the front end of the lifting driving assembly is fixedly connected with a deflection lifting assembly. The lifting driving assembly is used for driving the deflection lifting assembly to do reciprocating lifting motion in the vertical direction. The spiral spring cutting device has the advantages that a servo motor of the lifting driving assembly drives an eccentric wheel of the deflection lifting assembly to rotate so that a lifting base and a sliding base can vertically ascend and descend in a reciprocating mode along a sliding rail, and then the lifting base ascends and descends in a reciprocating mode so that a cutter assembly can be driven to ascend and descend in a reciprocating mode to achieve cutting operation on a spiral spring. The driving mode of reciprocating lifting of the cutter assembly is reliable and easy to achieve, the driving mode of direct drive of a hydraulic oil cylinder is replaced, the cutting efficiency is improved, and the overall machining efficiency of the volute spiral spring is improved.

Description

Technical Field

[0001] The utility model relates to the field of auxiliary components of a four-axis scroll spring machine, in particular to an upper and lower cutting device of a four-axis scroll spring machine. Background Art

[0002] Plane scroll spring, also known as clockwork spring, is a spring with one end fixed and the other end acted with torque. Under the action of torque, the spring material produces bending elastic deformation, causing the spring to twist in the plane, and the size of the deformation angle is proportional to the torque.

[0003] In the process of processing and manufacturing scroll springs, a four-axis scroll spring machine is needed. When designing the four-axis scroll spring machine, the upper and lower cutting mechanisms are the core components of the four-axis scroll spring machine, which can cut the scroll springs that have been rolled, and then realize continuous processing of the scroll springs by reciprocating up and down cutting. However, the current upper and lower cutting mechanisms usually use a hydraulic cylinder direct drive to drive the cutting tool to reciprocate and rise and fall, which has low efficiency and is inconvenient to adjust the reciprocating stroke of the cutting tool. Utility Model Content

[0004] The purpose of the utility model is to provide an upper and lower cutting device for a four-axis scroll spring machine in order to solve the above-mentioned problem. The servo motor of the lifting drive assembly drives the eccentric wheel of the eccentric lifting assembly to rotate, so that the lifting seat and the slide seat can be reciprocated vertically along the slide rail, and then the reciprocating lifting of the lifting seat can drive the tool assembly to reciprocate and lift to achieve the cutting operation of the scroll spring. The driving method for the reciprocating lifting of the tool assembly is reliable and easy to achieve, as described below for details.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] The utility model provides a four-axis scroll spring machine upper and lower cutting device, comprising a scroll spring machine body, a lifting drive assembly is installed on the top of the scroll spring machine body, and a deflection lifting assembly is fixedly connected to the front end of the lifting drive assembly, so as to drive the deflection lifting assembly to perform vertical reciprocating lifting motion through the lifting drive assembly;

[0007] A cutter assembly is fixedly connected to the bottom of the deflection lifting assembly, and is used to cut the spiral spring in a manner that the deflection lifting assembly drives the cutter assembly to lift and lower the cutter assembly reciprocatingly.

[0008] Preferably, the lifting drive assembly includes a mounting seat and a reducer, the mounting seat is vertically mounted on the front top of the scroll spring machine body, and the reducer with its axis arranged longitudinally is fixed to the top back of the mounting seat, a servo motor for inputting power is coaxially connected to the rear of the reducer, and the output shaft at the front end of the reducer is fixedly mounted with the deflection lifting assembly.

[0009] Preferably, the deflection and swing lifting assembly includes an eccentric wheel and a lifting seat, the output shaft at the front end of the reducer is coaxially fixed with the eccentric wheel, and the front part of the eccentric wheel is rotatably connected to an eccentrically arranged swing seat, the lower part of the swing seat is connected to the lifting seat through a stroke adjustment mechanism, so as to realize the vertical reciprocating lifting and lowering of the lifting seat by driving the swing seat to deflect and swing back and forth through the eccentric wheel, and the tool assembly is installed at the bottom of the lifting seat.

[0010] Preferably, a slide rail is vertically installed in the middle of the front of the scroll spring machine body, the front of the slide rail is linearly slidably connected to a slide seat, and the front of the slide seat is fixed to the back of the lifting seat through a connecting seat, so as to guide the vertical reciprocating lifting of the lifting seat by means of vertical linear sliding of the slide seat along the slide rail.

[0011] Preferably, the stroke adjustment mechanism includes a matching groove and an adjusting screw, the matching grooves are opened at positions close to each other on the periphery of the swing seat and the lifting seat, the adjusting screw is located in the matching grooves at upper and lower positions and the top and bottom are respectively threadedly engaged with the matching grooves, and a plurality of locking screws are vertically inserted in the positions on both sides of the matching groove in front of the swing seat and the lifting seat in a threaded engagement manner, so that the inner wall of the matching groove is pressed against the adjusting screw by tightening the locking screw and the adjusting screw cannot rotate, and the adjusting screw can be engaged and rotated along the matching groove by loosening the locking screw.

[0012] Preferably, a holding ring is coaxially fixed to the middle portion of the adjusting screw for easy holding.

[0013] Preferably, the two parts of the adjusting screw at the upper position and the lower position of the holding ring have opposite thread directions.

[0014] Preferably, the tool assembly includes a tool holder and a cutting tool, the tool holder abuts against the front lower part of the lifting seat, and the bottom surface of the tool holder is installed with the vertically arranged cutting tool, so as to perform repeated and continuous cutting operations on the spiral spring by reciprocating vertical lifting of the cutting tool, a plurality of adjustment grooves are horizontally opened in the front of the tool holder, and the adjustment grooves are all through grooves in the longitudinal direction, and the adjustment grooves are all interspersed with clamping studs in a longitudinal sliding fit manner, and the rear ends of the clamping studs are all threadedly matched with the lifting seat, and the front ends of the clamping studs are pressed against the front surface of the tool holder.

[0015] Preferably, the adjustment grooves are all waist-shaped grooves arranged horizontally.

[0016] The above-mentioned four-axis scroll spring machine upper and lower cutting device is adopted, specifically in the process of using the scroll spring for cutting operation, the servo motor is energized to work, and the servo motor drives the eccentric wheel to repeatedly rotate a certain angle through the reducer and then reverse and return. In this process, the eccentric wheel drives the eccentrically arranged swing seat to eccentrically rotate a certain angle and then return, and then the swing seat drives the lifting seat to descend a certain distance through the stroke adjustment mechanism and then rise and return. At the same time, in this process, the vertical lifting of the lifting seat can be guided by the sliding of the slide seat along the slide rail. In this way, the servo motor of the lifting drive assembly drives the eccentric wheel of the swaying lifting assembly to rotate, so that the lifting seat and the slide can be reciprocated vertically along the slide rail. Then, the reciprocating lifting of the lifting seat can drive the tool assembly to reciprocate and lift to realize the continuous cutting operation of the scroll spring. The driving method for the reciprocating lifting of the tool assembly is reliable and easy to realize, which replaces the direct drive method of the hydraulic cylinder, and improves the cutting effect. The cam is then adjusted to a desired position for the cutter to be moved and the adjustment screw is then turned to adjust the distance between the cam and the slide, thereby allowing the cutter to move more easily and precisely to the desired position.

[0017] The beneficial effects are as follows: 1. The utility model can make the lifting seat and the slide seat reciprocate vertically along the slide rail by driving the eccentric wheel of the sway lifting assembly to rotate through the servo motor of the lifting drive assembly, and then the tool assembly can be driven to reciprocate and lift through the reciprocating lifting of the lifting seat to achieve the cutting operation of the scroll spring. The reciprocating lifting driving method of the tool assembly is reliable and easy to achieve, replacing the direct driving driving method of the hydraulic cylinder, improving the cutting efficiency and helping to improve the overall processing efficiency of the scroll spring;

[0018] 2. The swing seat and the lifting seat of the deflection and swing lifting assembly are connected by a stroke adjustment mechanism, so that the distance between the swing seat and the lifting seat can be adjusted by turning the adjustment screw of the stroke adjustment mechanism, and then the lowest descending position of the lifting seat and the slide seat can be adjusted, so as to adjust the descending stroke of the tool assembly, so that the tool assembly can smoothly cut off the spiral springs of different thicknesses, and improve the applicability of the deflection and swing lifting assembly;

[0019] 3. The left and right positions of the tool holder and the cutting tool can be fine-tuned by sliding horizontally along the clamping stud through the adjustment groove of the tool holder and tightening the clamping stud, ensuring that the cutting tool can be moved and adjusted to a suitable and accurate cutting position, thereby improving the flexibility and applicability of the tool assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the utility model 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 some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 It is an overall left-side sectional schematic diagram of the utility model.

[0022] The following are the descriptions of the reference numerals:

[0023] 1. Swing lift assembly; 101. Slide rail; 102. Slide seat; 103. Eccentric wheel; 104. Swing seat; 105. Stroke adjustment mechanism; 1051. Locking screw; 1052. Matching groove; 1053. Adjusting screw; 1054. Holding ring; 106. Lifting seat; 107. Connecting seat; 2. Vortex spring machine body; 3. Lifting drive assembly; 301. Servo motor; 302. Reducer; 303. Mounting stand; 4. Tool assembly; 401. Clamping stud; 402. Adjusting groove; 403. Tool holder; 404. Cutting tool. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be described in detail below. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other implementation methods obtained by ordinary technicians in this field without creative work belong to the scope of protection of the utility model.

[0025] See also Figure 1 As shown, the utility model provides an upper and lower cutting device of a four-axis scroll spring machine, including a scroll spring machine body 2, a lifting drive assembly 3 is installed on the top of the scroll spring machine body 2, the lifting drive assembly 3 includes a mounting seat 303 and a reducer 302, a mounting seat 303 is vertically installed on the front top of the scroll spring machine body 2, and a reducer 302 with an axis arranged longitudinally is fixed on the top back of the mounting seat 303, the rear part of the reducer 302 is coaxially connected to a servo motor 301 for inputting power, and the output shaft at the front end of the reducer 302 is fixedly installed with a sway lifting assembly 1, the purpose of such a setting is to replace the direct drive mode of the hydraulic cylinder with the lifting mode driven by the servo motor 301, which is conducive to improving the cutting efficiency.

[0026] See also Figure 1 As shown, the front end of the lifting drive assembly 3 is fixedly connected with the yaw lifting assembly 1, which is used to drive the yaw lifting assembly 1 to perform vertical reciprocating lifting motion through the lifting drive assembly 3. Specifically, the yaw lifting assembly 1 includes an eccentric wheel 103 and a lifting seat 106. The output shaft at the front end of the reducer 302 is coaxially fixed with the eccentric wheel 103, and the front part of the eccentric wheel 103 is rotatably connected with an eccentrically set swing seat 104. The lower part of the swing seat 104 is connected with the lifting seat 106 through a stroke adjustment mechanism 105, which is used to realize the vertical reciprocating lifting of the lifting seat 106 by driving the swing seat 104 to yaw and yaw by the eccentric wheel 103. The bottom of the lifting seat 106 is installed with a tool assembly 4, and the scroll spring machine body 2 is vertically installed with a slide rail 101 in the middle of the front, and the front part of the slide rail 101 is linearly slidably connected with a slide seat 102, and the front of the slide seat 102 is fixed to the back of the lifting seat 106 through a connecting seat 107, so as to guide the vertical reciprocating lifting of the lifting seat 106 by the slide seat 102 sliding vertically along the slide rail 101. The effect of such a setting is that the eccentric wheel 103 drives the eccentrically arranged swing seat 104 to eccentrically rotate a certain angle and then return to its original position, and then the swing seat 104 drives the lifting seat 106 to descend a certain distance and then rise and return to its original position through the stroke adjustment mechanism 105. At the same time, in this process, the vertical lifting of the lifting seat 106 can be guided by the slide seat 102 sliding along the slide rail 101.

[0027] The stroke adjustment mechanism 105 mentioned above is specifically that the stroke adjustment mechanism 105 includes a matching groove 1052 and an adjusting screw 1053. The outer periphery of the swing seat 104 and the lifting seat 106 are provided with matching grooves 1052 at positions close to each other. The adjusting screw 1053 is located in the matching grooves 1052 at the upper and lower positions, and the top and bottom are respectively threadedly engaged with the matching grooves 1052. The front of the swing seat 104 and the lifting seat 106 are vertically interspersed with a plurality of locking screws 1051 at both sides of the matching grooves 1052 in a threaded matching manner, so as to adjust the position of the swing seat 104 and the lifting seat 106 by tightening the locking screws 1051. The inner wall of the matching groove 1052 is used to press the adjusting screw 1053 so that it cannot rotate. At the same time, the locking screw 1051 is loosened to allow the adjusting screw 1053 to mesh and rotate along the matching groove 1052. The advantage of such a configuration is that the distance between the swing seat 104 and the lifting seat 106 can be adjusted by rotating the adjusting screw 1053 of the stroke adjustment mechanism 105, and then the lowest descending position of the lifting seat 106 and the slide seat 102 can be adjusted, thereby realizing the adjustment of the descending stroke of the tool assembly 4, so that the tool assembly 4 can smoothly cut off the spiral springs of different thicknesses.

[0028] See also Figure 1 As shown, the bottom of the deflection lifting assembly 1 is fixedly connected with a tool assembly 4, which is used to cut the spiral spring by driving the tool assembly 4 to lift and lower the deflection lifting assembly 1. The tool assembly 4 includes a tool seat 403 and a cutting tool 404. The tool seat 403 abuts against the front lower part of the lifting seat 106, and the bottom surface of the tool seat 403 is installed with a vertically arranged cutting tool 404, which is used to repeatedly and continuously cut the spiral spring by lifting and lowering the cutting tool 404 back and forth vertically. A plurality of adjustment slots 402 are horizontally opened in front of the tool seat 403, and the adjustment slots 402 are all through grooves in the longitudinal direction, and the adjusting grooves 402 are interspersed with clamping studs 401 in a longitudinal sliding fit manner, and the rear end of the clamping studs 401 is threadedly matched with the lifting seat 106, and the front end of the clamping studs 401 is pressed against the front surface of the tool holder 403. The reason for this arrangement is that the left and right positions of the tool holder 403 and the cutting tool 404 can be fine-tuned by sliding the adjusting grooves 402 of the tool holder 403 horizontally along the clamping studs 401 and tightening the clamping studs 401, thereby ensuring that the cutting tool 404 can be moved and adjusted to a suitable and accurate cutting position.

[0029] See also Figure 1As shown, the stroke adjustment mechanism 105 and the tool assembly 4 are optimized as follows. Specifically, with respect to the stroke adjustment mechanism 105, a holding ring 1054 is coaxially fixed to the middle of the adjustment screw 1053 for easy holding, so that the adjustment screw 1053 can be rotated by applying force by holding the holding ring 1054. Optionally, the two parts of the thread of the adjustment screw 1053 at the upper position and the lower position of the holding ring 1054 are rotated in opposite directions, so that during the rotation of the adjustment screw 1053, the swing seat 104 and the lifting seat 106 can achieve the purpose of moving away from or approaching each other. Specifically with respect to the tool assembly 4, the optional adjustment slots 402 are all waist-shaped slots arranged horizontally. Such an arrangement facilitates the adjustment slots 402 to have a relatively wide adjustment range in the horizontal direction, and then facilitates the smooth completion of the left-right position fine adjustment of the tool seat 403 and the cutting tool 404.

[0030] With the above structure, when the spiral spring is cut off, the servo motor 301 is powered on, and the servo motor 301 drives the eccentric wheel 103 to repeatedly rotate a certain angle through the reducer 302 and then reverse and return to its original position. In this process, the eccentric wheel 103 drives the eccentrically arranged swing seat 104 to eccentrically rotate a certain angle and then return to its original position. Then, the swing seat 104 drives the lifting seat 106 to descend a certain distance and then rise and return to its original position through the stroke adjustment mechanism 105. At the same time, in this process, the slide seat 102 slides along the slide rail 101. The lifting seat 106 can be guided for vertical lifting, so that the servo motor 301 of the lifting drive assembly 3 drives the eccentric wheel 103 of the yaw lifting assembly 1 to rotate, so that the lifting seat 106 and the slide 102 can be reciprocated vertically along the slide rail 101, and then the reciprocating lifting of the lifting seat 106 can drive the tool assembly 4 to reciprocate to achieve continuous cutting of the volute spring. The reciprocating lifting driving method of the tool assembly 4 is reliable and easy to achieve, replacing the direct driving driving method of the hydraulic cylinder, improving the cutting efficiency and being conducive to improving The overall processing efficiency of the spiral spring is improved. At the same time, since the swing seat 104 and the lifting seat 106 of the deflection lifting assembly 1 are connected through the stroke adjustment mechanism 105, the distance between the swing seat 104 and the lifting seat 106 can be adjusted by rotating the adjustment screw 1053 of the stroke adjustment mechanism 105, and then the lowest descending position of the lifting seat 106 and the slide seat 102 can be adjusted, thereby realizing the adjustment of the descending stroke of the tool assembly 4, so that the tool assembly 4 can smoothly cut spiral springs of different thicknesses, improving The applicability of the use of the yaw lifting assembly 1 has been improved, and specifically in the tool assembly 4, after loosening the clamping stud 401 to make the front end leave the surface of the tool holder 403, the tool holder 403 and the cutting tool 404 can be fine-tuned to the left and right positions by sliding horizontally along the clamping stud 401 through the adjustment slot 402 of the tool holder 403 and tightening the clamping stud 401 again to make the front end pressed against the surface of the tool holder 403, thereby ensuring that the cutting tool 404 can be moved and adjusted to a suitable and accurate cutting position, thereby improving the flexibility and applicability of the tool assembly 4.

[0031] In actual production, the servo motor 301 is used to drive the lifting and lowering instead of the hydraulic cylinder direct driving lifting and lowering driving method, so the processing efficiency can be significantly improved. When the hydraulic cylinder is directly driven, usually less than 10 spiral springs can be continuously cut per minute, while the servo motor 301 driving method can continuously cut about 17 per minute, which is extremely obvious for the improvement of spiral spring production efficiency.

[0032] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A four-axis scroll spring machine upper and lower cutting device, comprising a scroll spring machine body (2), characterized in that: A lifting drive assembly (3) is installed on the top of the scroll spring machine body (2), and a deflection lifting assembly (1) is fixedly connected to the front end of the lifting drive assembly (3) so as to drive the deflection lifting assembly (1) to perform vertical reciprocating lifting motion through the lifting drive assembly (3); A cutter assembly (4) is fixedly connected to the bottom of the deflection lifting assembly (1) so as to cut the spiral spring by driving the cutter assembly (4) to lift and lower the deflection lifting assembly (1) back and forth.

2. According to claim 1, the upper and lower cutting device of the four-axis scroll spring machine is characterized in that: The lifting drive assembly (3) comprises a mounting seat (303) and a reducer (302); the mounting seat (303) is vertically mounted on the front top of the scroll spring machine body (2); the reducer (302) whose axis is arranged in the longitudinal direction is fixed on the top back of the mounting seat (303); the rear of the reducer (302) is coaxially connected to a servo motor (301) for inputting power; and the output shaft at the front end of the reducer (302) is fixedly mounted with the deflection lifting assembly (1).

3. According to claim 2, the upper and lower cutting device of the four-axis scroll spring machine is characterized in that: The deflection and swing lifting assembly (1) comprises an eccentric wheel (103) and a lifting seat (106); the eccentric wheel (103) is coaxially fixed to the output shaft at the front end of the reducer (302); the front part of the eccentric wheel (103) is rotatably connected to an eccentrically arranged swing seat (104); the lower part of the swing seat (104) is connected to the lifting seat (106) via a stroke adjustment mechanism (105) so as to realize vertical reciprocating lifting of the lifting seat (106) by driving the swing seat (104) to deflect and swing back and forth through the eccentric wheel (103); the tool assembly (4) is installed at the bottom of the lifting seat (106).

4. According to claim 3, the upper and lower cutting device of the four-axis scroll spring machine is characterized in that: A slide rail (101) is vertically installed in the middle of the front of the scroll spring machine body (2); the front of the slide rail (101) is linearly slidably connected to a slide seat (102); and the front of the slide seat (102) is fixed to the back of the lifting seat (106) through a connecting seat (107) so as to guide the vertical reciprocating lifting of the lifting seat (106) by means of vertical linear sliding of the slide seat (102) along the slide rail (101).

5. The upper and lower cutting device of the four-axis scroll spring machine according to claim 4, characterized in that: The stroke adjustment mechanism (105) comprises a matching groove (1052) and an adjusting screw (1053). The matching grooves (1052) are provided on the outer peripheries of the swing seat (104) and the lifting seat (106) at positions close to each other. The adjusting screw (1053) is located in the matching grooves (1052) at upper and lower positions, and the top and bottom are respectively threadedly engaged with the matching grooves (1052). A plurality of locking screws (1051) are vertically inserted in the front of the swing seat (104) and the lifting seat (106) at positions on both sides of the matching groove (1052) in a threaded engagement manner, so that the inner wall of the matching groove (1052) is pressed against the adjusting screw (1053) by tightening the locking screws (1051) so that the adjusting screw (1053) cannot rotate, and the locking screws (1051) are loosened so that the adjusting screw (1053) can rotate along the matching groove (1052).

6. The upper and lower cutting device of a four-axis scroll spring machine according to claim 5, characterized in that: A holding ring (1054) is coaxially fixed to the middle of the adjusting screw (1053) for easy holding.

7. The upper and lower cutting device of a four-axis scroll spring machine according to claim 6, characterized in that: The two parts of the adjusting screw (1053) at the upper position and the lower position of the holding ring (1054) have opposite thread rotation directions.

8. The upper and lower cutting device of a four-axis scroll spring machine according to any one of claims 3 to 7, characterized in that: The tool assembly (4) comprises a tool holder (403) and a cutting tool (404); the tool holder (403) abuts against the front lower part of the lifting seat (106); and the bottom surface of the tool holder (403) is provided with the cutting tool (404) arranged vertically, so as to perform repeated and continuous cutting operations on the spiral spring by reciprocating vertical lifting of the cutting tool (404); a plurality of adjustment grooves (402) are horizontally opened in front of the tool holder (403), and the adjustment grooves (402) are all through grooves in the longitudinal direction; the adjustment grooves (402) are all inserted with clamping studs (401) in a longitudinal sliding manner, and the rear ends of the clamping studs (401) are all threadedly matched with the lifting seat (106), and the front ends of the clamping studs (401) are pressed against the front surface of the tool holder (403).

9. The upper and lower cutting device of a four-axis scroll spring machine according to claim 8, characterized in that: The adjustment grooves (402) are all waist-shaped grooves arranged horizontally.

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