Automatic spring feeding device of spring grinder

Abstract

The utility model discloses an automatic spring feeding device of a spring grinder, which relates to the technical field of spring grinders, solves the problem that feeding is affected by the spring clamping phenomenon in other feeding modes, and comprises a feeding plate capable of horizontally moving; the feeding guide pipe is arranged in an inclined mode, and a channel facilitating downward sliding of the spring is formed in the feeding guide pipe; the clamping mechanism is hinged to the feeding plate, and the clamping mechanism can turn over up and down in a vertical plane; the driving mechanism is hinged to the clamping mechanism; and the downward pressing mechanism is provided with an ejector rod capable of moving up and down, and the ejector rod is located above the spring grinding machine and can downwards eject the spring to the spring grinding machine from the position between the two clamping jaws. According to the spring feeding device, the obliquely-arranged feeding guide pipe can enable the springs to flow downwards in an inclined mode, the spring clamping phenomenon is not prone to occurring, the alignment performance of the springs entering a grinding sleeve through the feeding guide pipe can be improved, meanwhile, the spring clamping phenomenon is avoided during spring feeding, and the feeding speed and accuracy are obviously improved.

Description

Technical Field

[0001] The utility model relates to the technical field of spring grinding machines, in particular to an automatic spring loading device for a spring grinding machine. Background Art

[0002] The purpose of a spring grinding machine is to use a set of grinding discs arranged above and below to grind the upper and lower ends of the spring to ensure smoothness and remove burrs and bumps. There are two ways to load springs on existing spring grinding machines. The first is manual loading. Since manual loading is slow and inefficient, the second loading method is usually used.

[0003] The second loading method involves vertical loading through a conduit. Several springs are stacked one on top of the other within the conduit. Due to their own weight, the stacked springs are compressed by gravity, causing some expansion. Furthermore, before surface grinding, the springs have numerous burrs and bumps, which can easily get stuck in the conduit and prevent them from falling out, hindering loading. Utility Model Content

[0004] The purpose of the utility model is to solve the above problems and to design an automatic spring loading device for a spring grinding machine, which solves the problem that other loading methods have a spring clip phenomenon, thereby affecting the loading process.

[0005] To achieve the above-mentioned purpose, the technical solution of the present invention is to provide an automatic spring loading device for a spring grinding machine, comprising:

[0006] Loading plate, capable of horizontal movement;

[0007] A feeding conduit, the feeding conduit being arranged at an angle and having a passage therein for facilitating the downward sliding of the spring;

[0008] A clamping mechanism, the clamping mechanism is hinged to the loading plate and can be turned up and down in a vertical plane, the clamping mechanism has two clamping claws that can be opened and closed, and the two clamping claws are located at the discharge port of the channel;

[0009] A driving mechanism, the driving mechanism being hinged to the clamping mechanism and used to control the clamping mechanism to flip up and down between the feeding conduit and the spring grinding machine;

[0010] The pressing mechanism comprises a push rod which can move up and down, the push rod being located above the spring grinding machine and capable of pushing the spring downwards from between the two clamping jaws onto the spring grinding machine.

[0011] Preferably, a base is provided below the loading plate, a horizontally fixed guide rod is provided on the base, and the bottom of the loading plate is horizontally slidably connected to the guide rod.

[0012] Preferably, a motor mounting plate is provided on one side of the base, a servo motor is installed on one side of the motor mounting plate, an output end of the servo motor is connected to a screw rod, and the screw rod is transmission-connected to the bottom of the loading plate.

[0013] Preferably, the clamping mechanism comprises a finger cylinder, and both clamping jaws are mounted on the finger cylinder.

[0014] Preferably, two supports are fixedly installed on the loading plate, and a cylinder swing seat is rotatably connected between the two supports. The driving mechanism includes a driving cylinder, which is fixedly installed on the cylinder swing seat. An air claw seat is hinged on the loading plate, and the upper end of the air claw seat is fixedly connected to the end of the finger cylinder away from the clamping claw, and the middle part of the air claw seat is hinged to the output end of the driving cylinder.

[0015] Preferably, opposite sides of the two clamping jaws have contoured grooves that match the outer shape of the spring.

[0016] Preferably, an inclined bracket is provided on the feeding plate, and the feeding tube is fixed obliquely on the inclined bracket. Two stop cylinders are provided on one side of the inclined bracket, and the two stop cylinders correspond to the positions of the feeding tube and the clamping mechanism respectively. The output end of one stop cylinder can be inserted into the feeding tube, and the output end of the other stop cylinder can be inserted into the moving path of the two clamps flipping downward.

[0017] Preferably, the pressing mechanism includes a pressing cylinder, a fixing plate is fixedly mounted on the oblique bracket, and the pressing cylinder is vertically fixed on the fixing plate.

[0018] Compared with the prior art, the beneficial effects are:

[0019] The inclined feeding conduit in the utility model can send the spring obliquely downward to ensure that the springs are not subjected to too much force, which causes compression and expansion. Therefore, the spring jam phenomenon is not easy to occur. After the spring flows out of the feeding conduit, the clamping mechanism will control the two clamping claws to clamp the spring. Then the driving mechanism will control the clamping mechanism to flip downward and reach the top of the grinding sleeve on the grinding disc of the spring grinding machine. The clamped spring will be aligned with the grinding sleeve, and then the pressing mechanism will control the push rod to press down, pressing the spring into the grinding sleeve to complete the feeding. Through this feeding method, the alignment of the spring when entering the grinding sleeve through the feeding conduit can be improved. At the same time, there is no jamming phenomenon when the spring is fed, and the feeding speed and accuracy are significantly improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the overall structure of the automatic spring loading device of the spring grinding machine of the utility model;

[0021] Figure 2This is a schematic diagram of the structure of the automatic spring loading device of the spring grinding machine when the base is removed;

[0022] Figure 3 yes Figure 2 A structural diagram from another perspective;

[0023] Figure 4 yes Figure 2 Schematic diagram of the structure of the middle feeding conduit in a cross-sectional view;

[0024] Figure 5 It is a schematic diagram of the cross-sectional structure of the feeding conduit.

[0025] In the figure, 1. feeding plate; 2. base; 3. feeding guide tube; 301. channel; 4. clamping mechanism; 41. finger cylinder; 42. clamping claw; 5. driving mechanism; 51. driving cylinder; 52. cylinder swing seat; 6. pressing mechanism; 61. pressing cylinder; 62. push rod; 7. inclined bracket; 8. bracket; 9. guide rod; 10. screw seat; 11. motor mounting plate; 12. servo motor; 13. fixing plate; 14. stop cylinder; 15. support; 16. connecting rod; 17. claw seat; 18. screw. DETAILED DESCRIPTION

[0026] The following is a clear and complete description of the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0027] like Figure 1 As shown, a preferred embodiment of the present invention provides an automatic spring loading device for a spring grinding machine. The spring loading device is mainly used for loading springs onto a spring grinding machine. Generally, the spring grinding machine is located below the automatic spring loading device.

[0028] The automatic spring-loading device primarily consists of a base 2, a loading plate 1, a loading conduit 3, a gripping mechanism 4, a drive mechanism 5, a pressing mechanism 6, and a servo motor 12. Base 2 is a triangular base, typically fixed to a structure. A guide rod 9 is located on either side of the base 2. Each end of the guide rod 9 is secured to a bracket 8, which is in turn secured to the base 2. Four linear bearing blocks are mounted on the bottom of the loading plate 1, with each pair of linear bearing blocks corresponding to one guide rod 9. These linear bearing blocks are connected to the guide rods 9 in a horizontal sliding manner, ensuring smooth horizontal movement of the loading plate 1.

[0029] A motor mounting plate 11 is fixedly connected to one end of the two guide rods 9, and the above-mentioned servo motor 12 is horizontally fixedly mounted on one side of the motor mounting plate 11, and the output end of the servo motor 12 is connected to the screw rod 18 through a coupling, and the screw rod 18 is rotatably connected to the screw rod seat 10 fixed on the base 2. The screw rod 18 passes through the screw rod seat 10 and is transmission-connected to the screw rod sleeve fixed at the bottom of the loading plate 1. When loading, the servo motor 12 drives the screw rod 18 to rotate, thereby driving the loading plate 1 to move horizontally and adjust the loading position.

[0030] like Figure 2-Figure 5 As shown, an inclined bracket 7 is vertically fixed to one side of the upper portion of the loading plate 1. The loading conduit 3 is screwed to one side of the inclined bracket 7 at a 45° angle. A channel 301 is defined within the loading conduit 3. The diameter of this channel 301 is slightly larger than that of the spring, allowing the spring to slide smoothly downward along the lower edge of the channel 301. This prevents adjacent springs from being squeezed together, causing them to expand under pressure and prevent them from falling out of the loading conduit 3.

[0031] refer to Figure 2 Two supports 15 are provided on the loading plate 1. The two supports 15 are arranged in parallel and fixed to the loading plate 1 by screws. A cylinder swing seat 52 is rotatably connected between the two supports 15. The cylinder swing seat 52 can be flipped and swung up and down between the two supports 15.

[0032] The aforementioned drive mechanism 5 primarily utilizes a drive cylinder 51, the front end (non-output end) of which is fixedly mounted on a cylinder pendulum seat 52, while the output end of the drive cylinder 51 is fixedly connected to a connecting rod 16. A notch is formed at one end of the loading plate 1, into which an air gripper seat 17 is hingedly mounted. The output end of the drive cylinder 51 is hingedly connected to the center portion of the air gripper seat 17.

[0033] like Figure 3 As shown, the clamping mechanism 4 is composed of a finger cylinder 41 and two clamping claws 42. The shape of the above-mentioned claw seat 17 is similar to an I-shape. The upper end of the claw seat 17 is fixedly connected to the tail end of the finger cylinder 41. The two clamping claws 42 are both installed on the finger cylinder 41, and the finger cylinder 41 controls the two clamping claws 42 to open or close.

[0034] To accurately grip the spring, contoured grooves are provided on opposing sides of the two jaws 42. These grooves are shaped to match the spring's profile. Initially, the two jaws 42 are positioned at the discharge port of the feeding conduit 3. Once the spring in the feeding conduit 3 slides down the channel 301 and falls between the two jaws 42, the finger cylinder 41 controls the two jaws 42 to clamp the spring. The contoured grooves on the two jaws 42 act in concert to reduce the spring's previously slightly expanded diameter, allowing for faster and more accurate delivery of the spring to the grinding sleeve on the grinding disc.

[0035] After the spring is clamped by the finger cylinder 51, the driving cylinder 51 will control the finger cylinder 41 to flip downward, and the spring will also flip downward with the clamping claw 42. When the spring flips downward and reaches just above a grinding sleeve on the spring grinding machine, the lower end of the spring is in a state of pre-insertion into the grinding sleeve (that is, the lower end of the spring contacts the entrance of the grinding sleeve), and then the spring is pressed into the grinding sleeve by the pressing mechanism 6.

[0036] The spring can be aligned with the grinding sleeve by the clamping mechanism 4 to ensure that the spring can fall into the grinding sleeve accurately.

[0037] refer to Figure 2 The pressing mechanism 6 consists of a pressing cylinder 61 and a push rod 62. A fixed plate 13 is mounted at the front end of the inclined bracket 7. The pressing cylinder 61 is vertically fixed to the fixed plate 13, and the push rod 62 is connected to the output end of the pressing cylinder 61. When the clamping mechanism 4 grips the spring and flips it over to directly above a grinding wheel on the grinding disc, the pressing cylinder 61 controls the push rod 62 to move downward, pressing the spring downward into the grinding sleeve. In other words, the push rod 62 is located directly above the position where the two clamping jaws 42 are flipped downward, ensuring that the spring can be accurately pressed into the grinding sleeve.

[0038] refer to Figure 2 、 Figure 3 Two stop cylinders 14 are installed on the back side of the inclined bracket 7 (i.e., the side away from the feeding conduit 3). These two stop cylinders 14 correspond to the feeding conduit 3 and the clamping mechanism 4, respectively. A strip-shaped hole is provided in the feeding conduit 3. The output end of one of the stop cylinders 14 can extend through the strip-shaped hole to contact the spring in the feeding conduit 3, preventing the spring from sliding down along the channel 301.

[0039] The output end of the other stop cylinder 14 can extend and pass through the right side of the two clamping claws 42, intercepting the moving path of the clamping mechanism 4 when it flips downward, and this position is the initial position of the clamping mechanism 4 before loading.

[0040] A plurality of springs can be placed in the channel 301 of the feeding guide pipe 3 at one time, and the plurality of springs will slide downward together, wherein the output end of one stop cylinder 14 will be in contact with the second last spring in the feeding guide pipe 3 from the discharge port, and the output end of the other stop cylinder 14 will be moved to the right side of the two clamping jaws 42. The last spring in the feeding guide pipe 3 will slide smoothly between the two clamping jaws 42, and the output end of the stop cylinder 14 can prevent the spring from falling down, then the finger cylinder 41 controls the two clamping jaws 42 to clamp the spring, and then the stop cylinder 14 that blocks the clamping mechanism 4 from turning down returns to the original position, and the driving mechanism 5 controls the clamping mechanism 4 to turn down and feed.

[0041] After the feeding of the spring grinding machine is completed, the clamping mechanism 4 returns to the original position, and the output end of the stop mechanism is extended and re-inserted into the right side of the clamping jaw 42. Then the stop cylinder 14 in contact with the spring in the feeding guide pipe 3 returns to the original position, so that the spring slides downward. Finally, the above steps are repeated to feed the springs one by one onto the grinding disc. After each feeding is completed, the feeding plate 1 is moved horizontally by the servo motor 12 to adjust the feeding position.

[0042] As shown in Figure 1 The base 2 also has a strip-shaped hole extending upward and downward on one side, so that the height of the base 2 can be adjusted when the base 2 is installed, and the height of the spring feeding is adjusted.

[0043] The above technical solution only embodies the preferred technical solution of the technical solution of the present application, and some changes made by the skilled in the art to some parts thereof all embody the principles of the present application and are within the protection scope of the present application.

Claims

1. An automatic spring-loading device for a spring grinding machine, characterized in that: include: A loading plate (1) capable of horizontal movement; A feeding conduit (3), wherein the feeding conduit (3) is arranged at an angle, and a channel (301) is provided in the feeding conduit (3) for facilitating the downward sliding of the spring; A clamping mechanism (4), the clamping mechanism (4) is hinged to the loading plate (1) and can be turned up and down in a vertical plane, the clamping mechanism (4) has two clamping claws (42) that can be opened and closed, and the two clamping claws (42) are located at the discharge port of the channel (301); A driving mechanism (5), the driving mechanism (5) being hinged to the clamping mechanism (4) and used for controlling the clamping mechanism (4) to flip up and down between the feeding conduit (3) and the spring grinding machine; A pressing mechanism (6) is provided with a push rod (62) capable of moving up and down. The push rod (62) is located above the spring grinding machine and can push the spring downward from between the two clamping jaws (42) onto the spring grinding machine.

2. The automatic spring-loading device for a spring grinding machine according to claim 1, characterized in that: A base (2) is provided below the loading plate (1), a horizontally fixed guide rod (9) is provided on the base (2), and the bottom of the loading plate (1) is horizontally slidably connected to the guide rod (9).

3. The automatic spring-loading device for a spring grinding machine according to claim 2, characterized in that: A motor mounting plate (11) is provided on one side of the base (2), a servo motor (12) is installed on one side of the motor mounting plate (11), an output end of the servo motor (12) is connected to a screw rod (18), and the screw rod (18) is transmission-connected to the bottom of the loading plate (1).

4. The automatic spring-loading device for a spring grinding machine according to claim 1, characterized in that: The clamping mechanism (4) comprises a finger cylinder (41), and two clamping claws (42) are both mounted on the finger cylinder (41).

5. The automatic spring-loading device for a spring grinding machine according to claim 4, characterized in that: Two supports (15) are fixedly mounted on the loading plate (1), and a cylinder swing seat (52) is rotatably connected between the two supports (15). The driving mechanism (5) includes a driving cylinder (51), and the driving cylinder (51) is fixedly mounted on the cylinder swing seat (52). An air claw seat (17) is hingedly mounted on the loading plate (1), and the upper end of the air claw seat (17) is fixedly connected to the end of the finger cylinder (41) away from the clamping claw (42), and the middle part of the air claw seat (17) is hingedly connected to the output end of the driving cylinder (51).

6. The automatic spring-loading device for a spring grinding machine according to claim 1, characterized in that: The opposite sides of the two clamping jaws (42) have contoured grooves that match the outer shape of the spring.

7. The automatic spring-loading device for a spring grinding machine according to claim 1, characterized in that: An inclined bracket (7) is provided on the feeding plate (1), and the feeding conduit (3) is fixed obliquely on the inclined bracket (7). Two stop cylinders (14) are provided on one side of the inclined bracket (7), and the two stop cylinders (14) respectively correspond to the positions of the feeding conduit (3) and the clamping mechanism (4). The output end of one stop cylinder (14) can be inserted into the feeding conduit (3), and the output end of the other stop cylinder (14) can be inserted into the moving path of the two clamping claws (42) turning downward.

8. The automatic spring-loading device for a spring grinding machine according to claim 7, characterized in that: The downward pressing mechanism (6) comprises a downward pressing cylinder (61), a fixing plate (13) is fixedly mounted on the inclined bracket (7), and the downward pressing cylinder (61) is vertically fixed on the fixing plate (13).

Images