Auxiliary feeding device of grinding machine

Abstract

An auxiliary feeding device of a grinding machine comprises transmission chains, and the two transmission chains are arranged in the middle of a rack in parallel in the horizontal direction. The positioning plates are symmetrically arranged on the opposite sides of the transmission chains, and V-shaped grooves are machined in the upper portions of the positioning plates and used for containing workpieces. The ejector rods are symmetrically arranged above the left part of the transmission chain and on the outer side of the positioning plate front and back, V-shaped grooves I are machined in the right parts of the ejector rods and correspond to the V-shaped grooves, and the left ends of the ejector rods are connected with jacking cylinders through connecting rods which are mounted on the left side of the rack; the photoelectric sensor is arranged above the left part of the transmission chain and is matched with a workpiece in height; the first pneumatic finger is arranged above the left part of the transmission chain; the grinding machine is arranged behind the left portion of the rack. According to the device, the two ends of a workpiece are supported through the positioning plate and move leftwards at a constant speed along with the transmission chain, the workpiece is ejected out of the positioning block through the ejector rod after being in place, then the workpiece is clamped through the first pneumatic finger and directionally transferred to a grinding machine to be machined, positioning is accurate, feeding is rapid, and the device is suitable for workpieces of various sizes and high in practicability.

Description

Technical Field

[0001] This utility model relates to an auxiliary feeding device for a grinding machine. Background Technology

[0002] With the continuous development of the manufacturing industry, the requirements for the surface quality, dimensional accuracy and batch consistency of parts are becoming increasingly higher. In particular, automotive shaft parts require very high surface and dimensional accuracy. After processing and forming, they need to be ground on a grinding machine. The grinding efficiency is closely related to the feeding efficiency of the parts. Existing feeding mechanisms are mostly designed for feeding single parts, and are not interchangeable between parts of different sizes, resulting in poor practicality. Utility Model Content

[0003] To address the shortcomings mentioned above, this utility model provides an auxiliary feeding device for a grinding machine.

[0004] To achieve the above objectives, this utility model provides an auxiliary feeding device for a grinding machine, including...

[0005] A transmission chain is provided horizontally in the middle of the frame, and two parallel transmission chains are provided at the front and rear.

[0006] A positioning plate is symmetrically arranged on one side of the transmission chain, and a V-shaped groove is machined on the upper part of the positioning plate for placing the workpiece.

[0007] The push rod is symmetrically arranged on the upper left side of the transmission chain and the outside of the positioning plate. The right side of the push rod is machined with a V-shaped groove I corresponding to the V-shaped groove. The left end of the push rod is connected to a connecting rod, and the lower part of the connecting rod is connected to a lifting cylinder. The lifting cylinder is installed on the left side of the frame.

[0008] A photoelectric sensor is located above the left side of the transmission chain and between the two transmission chains. The height of the photoelectric sensor matches the workpiece. The photoelectric sensor is connected to the left side of the frame via a bracket.

[0009] The first pneumatic finger is located above the left side of the transmission chain. The upper part of the first pneumatic finger is connected to the first push cylinder. The first push cylinder forms a sliding fit with the upper fixed seat in the front-back direction through a screw-slider mechanism.

[0010] A grinding machine is located at the rear left side of the frame.

[0011] As a further improvement of this utility model, the positioning plate is evenly arranged along the length direction of the transmission chain, and the lower part of the positioning plate is connected and fixed to the link of the transmission chain.

[0012] As a further improvement of this utility model, the spacing between the push rods is less than the length of the workpiece, and the position of the push rods is lower than that of the positioning plate.

[0013] As a further improvement of this utility model, the horizontal position of the top rod is adjustable, and a waist-shaped groove is machined on the left side of the top rod. A bolt is installed in the waist-shaped groove and screwed into the connecting rod for positioning.

[0014] As a further improvement of this utility model, the vertical height of the photoelectric sensor is adjustable, and a waist-shaped groove I is vertically machined on the bracket. The middle part of the photoelectric sensor slides into the waist-shaped groove I and is locked with a nut.

[0015] As a further improvement of this utility model, the lower part of the first pneumatic finger is provided with symmetrical grippers at the front and back, and the lower part of the grippers is provided with a tip on the opposite side.

[0016] As a further improvement of this utility model, a discharge conveyor belt is provided between the frame and the grinding machine, and a second pneumatic finger is provided above the discharge conveyor belt. The upper part of the second pneumatic finger is connected to a second push cylinder, and the second push cylinder forms a sliding fit with the upper fixed seat through the screw slider mechanism.

[0017] As a further improvement of this utility model, the front-to-back center distance between the second pneumatic finger and the first pneumatic finger matches the center distance between the frame and the discharge conveyor belt.

[0018] The beneficial effects of this utility model are as follows:

[0019] The device supports the workpiece at both ends by positioning plates and moves to the left at a constant speed with the transmission chain. After it is in place, the push rod pushes the workpiece out of the positioning block, and then the first pneumatic finger clamps the workpiece and transfers it to the grinding machine for processing. It has accurate positioning, fast feeding, and is suitable for workpieces of various sizes, making it highly practical. Attached Figure Description

[0020] Figure 1 This is a front view of an auxiliary feeding device for a grinding machine according to the present invention;

[0021] Figure 2 This is a top view of an auxiliary feeding device for a grinding machine according to the present invention;

[0022] Figure 3 This is a side view of an auxiliary feeding device for a grinding machine according to the present invention;

[0023] Figure 4 Here is a structural diagram of positioning plate 3;

[0024] Figure 5 This is the front view of top rod 5;

[0025] Figure 6 This is a top view of the push rod 5;

[0026] Figure 7 This is a cross-sectional view of bracket 7;

[0027] Figure 8 This is a side view of bracket 7;

[0028] Figure 9 This is a structural diagram of workpiece 4.

[0029] In the diagram: 1. Frame; 2. Transmission chain; 21. Chain link; 3. Positioning plate; 31. V-groove; 4. Workpiece; 41. Boss; 42. Through hole; 5. Push rod; 51. V-groove I; 52. Waist-shaped groove; 6. Photoelectric sensor; 7. Bracket; 71. Waist-shaped groove I; 8. Connecting rod; 9. Lifting cylinder; 10. First pneumatic finger; 101. Gripper; 102. Center; 11. First pushing cylinder; 12. Screw slider mechanism; 13. Upper fixed seat; 14. Discharge conveyor belt; 15. Grinding machine; 16. Second pneumatic finger; 17. Second pushing cylinder. Detailed Implementation

[0030] like Figure 1-3 As shown, the auxiliary feeding device for a grinding machine according to this utility model includes...

[0031] Transmission chain 2 is located horizontally in the middle of frame 1, with two parallel transmission chains arranged at the front and rear.

[0032] Positioning plate 3 is symmetrically arranged on one side of the transmission chain 2. The upper part of the positioning plate 3 is machined with a V-shaped groove 31 for placing the workpiece 4 (see...). Figure 4 The positioning plate 3 is evenly arranged along the length of the transmission chain 2. The lower part of the positioning plate 3 is connected and fixed to the chain link 21 of the transmission chain 2. The transmission chain 2 drives the positioning plate 3 to move to the left at a constant speed.

[0033] Top rods 5 are symmetrically positioned on the upper left side of the transmission chain 2 and outside the positioning plate 3. V-grooves Ⅰ51 are machined on the right side of top rods 5, corresponding to V-grooves 31. Connecting rod 8 is connected to the left end of top rod 5, and lifting cylinder 9 is connected to the lower part of connecting rod 8. Lifting cylinder 9 is installed on the left side of the frame 1. The spacing between top rods 5 is less than the length of workpiece 4. The position of top rods 5 is lower than the positioning plate 3. The horizontal position of top rods 5 is adjustable. A waist-shaped groove 52 is machined on the left side of top rod 5 (see...). Figure 5 , Figure 6 Bolts are installed in the waist-shaped groove 52 and screwed into the connecting rod 8 for positioning;

[0034] Photoelectric sensor 6 is located above the left side of transmission chain 2, between the two transmission chains 2. The height of photoelectric sensor 6 matches that of workpiece 4. Photoelectric sensor 6 is connected to the left side of frame 1 via bracket 7. The vertical height of photoelectric sensor 6 is adjustable. A waist-shaped groove I71 is vertically machined on bracket 7 (see...). Figure 7 , Figure 8 The photoelectric sensor 6 slides into the waist-shaped groove I71 and is locked in place by a nut.

[0035] The first pneumatic finger 10 is located above the left side of the transmission chain 2. The upper part of the first pneumatic finger 10 is connected to the first push cylinder 11. The first push cylinder 11 is slidably engaged with the upper fixed seat 13 in the front-back direction through the screw slider mechanism 12. The lower part of the first pneumatic finger 10 is symmetrically provided with grippers 101. The lower side of the grippers 101 is provided with a tip 102 on the opposite side.

[0036] Grinding machine 15 is located at the rear left side of the frame 1;

[0037] A discharge conveyor belt 14 is provided between the frame 1 and the grinding machine 15. A second pneumatic finger 16 is provided above the discharge conveyor belt 14. The upper part of the second pneumatic finger 16 is connected to a second push cylinder 17. The second push cylinder 17 forms a sliding fit with the upper fixed seat 13 through a screw-slider mechanism 12. The front-to-back center distance between the second pneumatic finger 16 and the first pneumatic finger 10 matches the center distance between the frame 1 and the discharge conveyor belt 14.

[0038] The device supports the workpiece at both ends by positioning plates and moves to the left at a constant speed with the transmission chain. After it is in place, the push rod pushes the workpiece out of the positioning block, and then the first pneumatic finger clamps the workpiece and transfers it to the grinding machine for processing. It has accurate positioning, fast feeding, and is suitable for workpieces of various sizes, making it highly practical.

[0039] In practical use, for ease of understanding of this utility model, it will be described in conjunction with the accompanying drawings;

[0040] In this embodiment, workpiece 4 mainly refers to shaft-type parts, such as... Figure 9 The workpiece 4 shown is a variable diameter shaft structure. The center of the workpiece 4 extends radially to form a boss 41. A through hole 42 is machined at the center of the workpiece 4. The main solution in this embodiment is to feed the workpieces 4 one by one to the grinding machine for processing and to unload the workpieces after processing.

[0041] During operation, the workpieces are placed at intervals on the upper part of the positioning plate and move to the left at a constant speed with the transmission chain. Both ends of the workpieces are embedded in the V-shaped grooves on the upper part of the positioning plate. When the workpieces move to the left side of the transmission chain and approach the photoelectric sensor, the V-shaped groove I on the right side of the push rod is positioned directly below the workpiece. The photoelectric sensor sends a working signal to the lifting cylinder, which then moves the two push rods upwards, lifting both ends of the workpiece to a designated height. Next, the first pushing cylinder moves the first pneumatic finger downwards, controlling the two grippers to move towards each other. The tips at the bottom of the grippers engage with the through holes at both ends of the workpiece, clamping it securely. The first push cylinder then moves the first pneumatic finger upward to reset. The screw-slider mechanism moves the first and second push cylinders backward as a whole. The first pneumatic finger transfers the workpiece to the grinding machine for processing. At the same time, the lifting cylinder moves the two push rods downward to reset, waiting for the next workpiece to be fed. After the workpiece is processed on the grinding machine, the second pneumatic finger takes it out and transfers it to the discharge conveyor belt for discharge. When the second pneumatic finger moves to the position above the discharge conveyor belt, the first pneumatic finger is just above the transmission chain on the left side of the frame. The first pneumatic finger continues to cooperate with the push rod to pick up the workpiece.

[0042] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An auxiliary feeding device for a grinding machine, characterized in that, include: The transmission chain (2) is located in the middle of the frame (1) in a horizontal direction, and two parallel transmission chains (2) are arranged in front and behind. Positioning plate (3), the positioning plate (3) is symmetrically arranged on the opposite side of the transmission chain (2), and the upper part of the positioning plate (3) is machined with a V-shaped groove (31) for placing the workpiece (4); Top rod (5), the top rod (5) is symmetrically arranged on the upper left side of the transmission chain (2) and the outside of the positioning plate (3). The right side of the top rod (5) is machined with a V-shaped groove I (51) corresponding to the V-shaped groove (31). The left end of the top rod (5) is connected to the connecting rod (8). The lower part of the connecting rod (8) is connected to the lifting cylinder (9). The lifting cylinder (9) is installed on the left side of the frame (1). Photoelectric sensor (6) is located above the left side of the transmission chain (2) and between the two transmission chains (2). The height of the photoelectric sensor (6) matches that of the workpiece (4). The photoelectric sensor (6) is connected to the left side of the frame (1) through a bracket (7). The first pneumatic finger (10) is located above the left side of the transmission chain (2). The upper part of the first pneumatic finger (10) is connected to the first push cylinder (11). The first push cylinder (11) is in sliding cooperation with the upper fixed seat (13) in the front-back direction through the screw slider mechanism (12). Grinding machine (15) is located at the rear left side of the frame (1).

2. The auxiliary feeding device for a grinding machine according to claim 1, characterized in that: The positioning plate (3) is evenly arranged along the length direction of the transmission chain (2), and the lower part of the positioning plate (3) is connected and fixed to the link (21) of the transmission chain (2).

3. The auxiliary feeding device for a grinding machine according to claim 1, characterized in that: The spacing between the push rods (5) is less than the length of the workpiece (4), and the position of the push rods (5) is lower than that of the positioning plate (3).

4. The auxiliary feeding device for a grinding machine according to claim 1, characterized in that: The horizontal position of the top rod (5) is adjustable. A waist-shaped groove (52) is machined on the left side of the top rod (5). Bolts are installed in the waist-shaped groove (52) and screwed into the connecting rod (8) for positioning.

5. An auxiliary feeding device for a grinding machine according to claim 4, characterized in that: The height of the photoelectric sensor (6) is adjustable. A waist-shaped groove I (71) is vertically machined on the bracket (7). The middle part of the photoelectric sensor (6) slides with the waist-shaped groove I (71) and is locked by a nut.

6. The auxiliary feeding device for a grinding machine according to claim 1, characterized in that: The first pneumatic finger (10) has symmetrical grippers (101) at the lower part, and a tip (102) is provided on the opposite side of the lower part of the grippers (101).

7. The auxiliary feeding device for a grinding machine according to claim 1, characterized in that: A discharge conveyor belt (14) is provided between the frame (1) and the grinding machine (15). A second pneumatic finger (16) is provided above the discharge conveyor belt (14). The upper part of the second pneumatic finger (16) is connected to a second push cylinder (17). The second push cylinder (17) is in sliding fit with the upper fixed seat (13) through the screw slider mechanism (12).

8. An auxiliary feeding device for a grinding machine according to claim 7, characterized in that: The front-to-back center distance between the second pneumatic finger (16) and the first pneumatic finger (10) matches the center distance between the frame (1) and the discharge conveyor belt (14).

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