Continuous grinding device for linear forming spring

Abstract

The utility model discloses a continuous grinding device for a linear forming spring. Two groups of side plates are oppositely arranged at intervals in the left-right direction and extend in the up-down direction; a spring conveying space is formed between the two groups of side plates; polishing plates are embedded in the opposite faces of the side plates. The grinding plate extends in the vertical direction and is provided with a grinding face not higher than the opposite face of the side plate. The spring pushing mechanism is arranged on the rear side of the spring conveying space and comprises two chain wheels arranged in a vertically spaced mode, a rotary chain connected between the two chain wheels and a rotary driving mechanism used for driving at least one chain wheel to rotate. The rotary chain is provided with a pushing section which faces the spring conveying space and extends up and down; a plurality of material pushing plates are arranged on the chain in the extending direction of the chain at intervals. The material pushing plate located on the material pushing section is provided with a material pushing end stretching into the spring conveying space. The wire forming spring grinding device can achieve continuous grinding operation of wire forming springs, the operation process is coherent and efficient, and the requirement for grinding sharp parts or burrs of the wire forming springs is effectively met.

Description

Technical Field

[0001] The utility model relates to the technical field of spring processing equipment, in particular to a continuous grinding device for wire-shaped springs. Background Art

[0002] Wire-formed springs are made by winding wires through a wire-formed spring machine. After the wire-formed spring is cut, there are sharp parts or burrs on both ends, which need to be polished. Conventionally, manual polishing requires the spring to be clamped and fixed by a clamp, and then polished by a polishing machine or a grinding wheel. This has the disadvantages of slow polishing speed, time-consuming and labor-intensive, and is not suitable for batch polishing of wire-formed springs. For wire-formed springs that need to be processed in batches, there is a method of using a spring grinding machine for continuous polishing. However, the spring grinding machine in the prior art is mainly used for the end surface grinding of the spring. While grinding the end surface of the wire-formed spring, it can also process the sharp parts or burrs on the spring. The use of a spring grinding machine is time-consuming and also has the problem of low polishing efficiency. It is difficult to adapt to the needs of polishing the sharp parts or burrs of the wire-formed spring. Utility Model Content

[0003] In view of the above-mentioned technical problems, the purpose of the utility model is to propose a continuous grinding device for wire-formed springs, which can realize the continuous grinding operation of wire-formed springs, and the operation process is coherent and efficient, effectively meeting the needs of grinding the sharp parts or burrs of wire-formed springs.

[0004] The technical solution of the utility model is achieved as follows: a continuous grinding device for wire-shaped springs, including a side plate and a spring pushing mechanism;

[0005] The two groups of side plates are arranged at intervals on the left and right sides and extend in the up-down direction; a spring conveying space is formed between the two groups of side plates;

[0006] A grinding plate is embedded on the opposite surface of the side plate; the grinding plate extends in the up-down direction and has a grinding surface that is not higher than the opposite surface of the side plate;

[0007] The spring pusher mechanism is arranged at the rear side of the spring conveying space, and comprises two sprockets spaced apart from each other, a rotary chain connected between the two sprockets, and a rotary drive mechanism for driving at least one sprocket to rotate;

[0008] The revolving chain has a pushing section which faces the spring conveying space and extends up and down; a plurality of pushing plates are arranged on the chain at intervals along its extending direction; and the pushing plate located on the pushing section has a pushing end which extends into the spring conveying space.

[0009] Furthermore, the relative surfaces of the side plates include a vertical extension surface and a curved surface extending from the top of the vertical extension surface toward the relatively outer side of the spring conveying space; the grinding plate is embedded in the vertical extension surface; and a spring feeding spacing is formed between the two groups of curved surfaces of the side plates.

[0010] Furthermore, the curved surface is an arc-shaped surface and is smoothly transitioned to the vertically extending surface.

[0011] Furthermore, the side panels are provided with ribs on the front and rear sides.

[0012] Furthermore, the rotary chain includes inner links and outer links that are alternately hinged along the extension direction of the rotary chain; adjacent inner links and outer links are hinged via hinge shafts; and the pusher plate is arranged on the inner links or the outer links.

[0013] Furthermore, the continuous polishing device includes a base; the two groups of side panels are arranged on the base; and an adjustment structure for adjusting the left and right positions of the side panels is provided between the base and the side panels.

[0014] Furthermore, the adjustment structure includes a first locking hole arranged on the side panel, a second locking hole arranged on the base and spaced apart on the left and right, and a bolt assembly; the first locking hole has a fixed position that matches one of the second locking holes; in the fixed position, the bolt assembly has a locking state of being inserted into the first locking hole and the second locking hole and locked.

[0015] Furthermore, a receiving plate is provided on the base below the spring conveying space, which is arranged tilted up and down and extends forward and backward; a spring feeding trough is provided at the tilted lower end of the receiving plate; the spring feeding trough extends in the left and right directions and is arranged tilted up and down.

[0016] Due to the application of the above technical solution, the utility model has the following advantages compared with the prior art:

[0017] 1. The utility model uses the side plates and the spring pusher mechanism in coordination, so that the wire-shaped spring to be polished can be placed horizontally in the spring conveying space between the two side plates in a slightly compressed state. During the movement of the rotary chain, the pusher plate pushes each wire-shaped spring located in the spring conveying space to move downward and pass through the polishing plate in turn, so that the end surface of the wire-shaped spring can be polished. The combination of the above methods can realize the continuous polishing operation of the wire-shaped spring, and the operation process is coherent and efficient, effectively meeting the needs of polishing the sharp parts or burrs of the wire-shaped spring.

[0018] 2. The utility model can meet the grinding requirements of wire-formed springs of different lengths by adjusting the relative distance between the two side plates.

[0019] 3. The utility model can receive the wire-shaped springs dropped from the spring conveying space by using the receiving plate and the spring feeding trough in coordination, and can guide the wire-shaped springs to be conveyed and discharged in sequence through the spring feeding trough, which is highly practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The technical solution of the utility model is further described below in conjunction with the accompanying drawings:

[0021] Figure 1 It is a three-dimensional structural schematic diagram of the overall structure of the utility model;

[0022] Figure 2 for Figure 1 A schematic diagram of the main view structure;

[0023] Figure 3 for Figure 2 A side cross-sectional view of

[0024] Figure 4 for Figure 1 A schematic diagram of a three-dimensional structure from another perspective;

[0025] Figure 5 It is a three-dimensional structural schematic diagram of the side plate and the grinding plate of the utility model;

[0026] Figure 6 for Figure 5 Exploded view of;

[0027] Figure 7 It is a three-dimensional structural schematic diagram of the spring pusher mechanism of the utility model;

[0028] Figure 8 for Figure 7 A schematic diagram of the main view structure;

[0029] Among them: 1. side plate; 11. vertical extension surface; 12. curved surface; 13. retaining edge; 2. grinding plate; 3. spring conveying space; 4. sprocket; 5. push plate; 6. rotary chain; 61. outer chain link; 62. inner chain link; 63. hinge shaft; 7. rotary drive mechanism; 8. base; 81. first locking hole; 82. second locking hole; 9. receiving plate; 91. spring unloading trough. DETAILED DESCRIPTION

[0030] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the protection scope of the present invention.

[0031] like Figure 1-8The figure shows a continuous grinding device for wire-formed springs described in this embodiment, which is suitable for grinding sharp parts or burrs at both ends of wire-formed spiral springs, and is particularly suitable for the grinding needs of spiral compression springs. The continuous grinding device includes a side plate 1 and a spring pushing mechanism. Two groups of side plates 1 are arranged at relative intervals on the left and right, and both extend in the up and down directions. The sides of the two groups of side plates 1 facing each other form relative surfaces. A spring conveying space 3 is formed between the two groups of side plates 1. Among them, the left and right widths of the spring conveying space 3 are adapted to the length of the wire-formed spring, and the wire-formed spring can enter the spring conveying space 3 after being slightly compressed, so that the two ends of the wire-formed spring can rest on the relative surfaces of the side plates 1 on both sides. The compression amount of the wire-formed spring is determined according to the actual process design.

[0032] An assembly opening is processed on the opposite surface of the aforementioned side plate 1. A grinding plate 2 is embedded in the assembly opening. The grinding plate 2 is a conventional component of the prior art. The grinding plate 2 extends in the up-down direction and has a grinding surface that is not higher than the opposite surface of the side plate 1. During specific assembly, the grinding surfaces of the grinding plate 2 are flush with each other, or slightly lower than the opposite surface of the side plate 1. The upper and lower ends of the grinding plate 2 are processed with chamfers. The chamfer structure plays a guiding role so that the end face of the molded spring can move smoothly between the grinding surface of the grinding plate 2 and the opposite surface of the side plate 1. The aforementioned spring pusher mechanism is installed on the rear side of the spring conveying space 3, and includes a bracket, a sprocket 4, a rotary chain 6, and a rotary drive mechanism 7. Among them, the bracket is fixed to the rear side of the spring conveying space 3, and the two sprockets 4 are arranged on the bracket at intervals up and down, and can rotate around their own central axis. The rotary chain 6 is an annular structure, which is connected between the two sprockets 4 to be connected with the sprocket 4 for transmission. The rotary drive mechanism 7 drives one or two sprockets 4 to rotate, so as to drive the rotary chain 6 to perform a circular motion. The rotary drive mechanism 7 is preferably a belt drive mechanism or a stepping motor.

[0033] The aforementioned revolving chain 6 has a pushing section which faces the spring conveying space 3 and extends up and down. A plurality of pushing plates 5 are installed on the chain at intervals along its extending direction. When the revolving chain 6 moves, each pushing plate 5 of the revolving chain 6 can be located in the pushing section. The pushing plate 5 located on the pushing section has a pushing end extending into the spring conveying space 3. Through the above structural design, when the revolving chain 6 is in motion, the pushing plate 5 located on the pushing section can contact the wire-shaped spring located in the spring conveying space 3 up and down, so as to force the wire-shaped spring to move downward and disengage from the bottom of the spring conveying space 3.

[0034] In this embodiment, the relative surfaces of the aforementioned side plates 1 include a vertical extension surface 11 and a curved surface 12 extending from the top of the vertical extension surface 11 toward the relatively outer side of the spring conveying space 3. The aforementioned grinding plate 2 is assembled on the vertical extension surface 11. A spring feeding spacing is formed between the curved surfaces 12 of the two groups of side plates 1. The spring feeding spacing is adapted to the initial length of the wire-formed spring. The wire-formed spring can be placed transversely in the spring feeding spacing with its initial length, and both ends of the wire-formed spring abut against the curved surface 12. In the specific structural design, the curved surface 12 is an arc-shaped surface, and is smoothly transitionally connected to the vertical extension surface 11. During the up and down movement of the wire-formed spring, it can smoothly move to the vertical extension surface 11 via the arc-shaped surface.

[0035] In this embodiment, retaining edges 13 are formed on the front and rear sides of the side plate 1. A wire groove structure is formed between the side plate 1 and the two retaining edges 13. When the wire forming spring moves up and down, the retaining edges 13 play a blocking role to prevent the wire forming spring from escaping from the spring conveying space 3.

[0036] In this embodiment, the aforementioned slewing chain 6 includes inner links 62 and outer links 61 that are alternately hinged along the extension direction of the slewing chain 6. Adjacent inner links 62 and outer links 61 are hinged via hinge shafts 63. The aforementioned pusher plates 5 are fixed on the inner links 62 or the outer links 61. In the specific arrangement, one or more inner links 62 or outer links 61 are spaced between two adjacent pusher plates 5, so that there is a set spacing between the two adjacent pusher plates 5.

[0037] The continuous grinding device of this embodiment includes a base 8. Both sets of side panels 1 are fixedly mounted on the base 8. An adjustment structure for adjusting the left and right positions of the side panels 1 is installed between the base 8 and the side panels 1. By adjusting the relative distance between the two side panels 1, the grinding requirements of wire-shaped springs of different lengths can be met. Specifically, the above-mentioned adjustment structure includes a first lock hole 81 located on the side panel 1, a second lock hole 82 located on the base 8 and arranged at intervals on the left and right, and a bolt assembly. The first lock hole 81 on the side panel 1 is connected to one of the second lock holes 82 so that the first lock hole 81 has a fixed position that matches the second lock hole 82. In this fixed position, the bolt assembly is inserted into the first lock hole 81 and the second lock hole 82 and locked to form a locking state in which the side panel 1 is locked and fixed on the base 8. Through the above-mentioned structural design, the first lock hole 81 on the side panel 1 corresponds to the second lock hole 82 at different positions to achieve the adjustment of the left and right positions of the side panel 1.

[0038] In this embodiment, a receiving plate 9 is installed on the base 8 below the spring conveying space 3, which is arranged obliquely up and down and extends forward and backward. A spring unloading trough 91 is formed at the oblique lower end of the receiving plate 9. The spring unloading trough 91 extends in the left-right direction and is arranged obliquely up and down. The wire-shaped spring falling from the spring conveying space 3 is received by the receiving plate 9 and can roll into the spring unloading trough 91 at the oblique lower end of the receiving plate 9. The wire-shaped spring located in the spring unloading trough 91 is moved and conveyed toward the oblique lower end of the spring unloading trough 91 to realize unloading. By using the receiving plate 9 and the spring unloading trough 91 in coordination, the wire-shaped spring falling from the spring conveying space 3 can be received, and the wire-shaped spring can be guided and conveyed through the spring unloading trough 91 in sequence, which is highly practical.

[0039] During specific use, the wire-shaped spring to be polished is placed horizontally between the curved surfaces 12 of the two side plates 1, and the two ends of the wire-shaped spring are in contact with the curved surfaces 12 on both sides. During the movement of the rotary chain 6, the push plate 5 presses down the wire-shaped spring to push the wire-shaped spring downward into the spring conveying space 3. The wire-shaped spring moves downward in the spring conveying space 3 in a slightly compressed state, and falls onto the receiving plate 9 after being polished by the polishing plate 2, and then is discharged through the spring unloading trough 91. The wire-shaped spring to be polished is placed between the curved surfaces 12 of the two side plates 1 in sequence to realize the continuous polishing operation of the wire-shaped spring. The combination of the above methods can realize the continuous polishing operation of the wire-shaped spring, and the operation process is coherent and efficient.

[0040] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A continuous grinding device for wire-shaped springs, comprising a side plate and a spring pushing mechanism; characterized in that: The two groups of side plates are arranged at intervals on the left and right sides and extend in the up-down direction; a spring conveying space is formed between the two groups of side plates; A grinding plate is embedded on the opposite surface of the side plate; the grinding plate extends in the up-down direction and has a grinding surface that is not higher than the opposite surface of the side plate; The spring pusher mechanism is arranged at the rear side of the spring conveying space, and comprises two sprockets spaced apart from each other, a rotary chain connected between the two sprockets, and a rotary drive mechanism for driving at least one sprocket to rotate; The revolving chain has a pushing section facing the spring conveying space and extending up and down; a plurality of pushing plates are arranged on the chain at intervals along its extending direction; the pushing plate located on the pushing section has a pushing end extending into the spring conveying space.

2. The continuous grinding device for wire-shaped springs according to claim 1, characterized in that: The opposite surfaces of the side plates include a vertical extension surface and a curved surface extending from the top of the vertical extension surface toward the relatively outer side of the spring conveying space; the grinding plate is embedded in the vertical extension surface; and a spring feeding spacing is formed between the two groups of curved surfaces of the side plates.

3. The continuous grinding device for wire-shaped springs according to claim 2, characterized in that: The curved surface is an arc-shaped surface and is smoothly transitionally connected to the vertically extending surface.

4. The continuous grinding device for wire-shaped springs according to claim 2, characterized in that: The front and rear sides of the side plate are provided with retaining edges.

5. The continuous grinding device for wire-shaped springs according to claim 1, characterized in that: The revolving chain comprises inner links and outer links which are alternately hinged along the extending direction of the revolving chain; the adjacent inner links and outer links are hinged via hinge shafts; and the pusher plate is arranged on the inner links or the outer links.

6. The continuous grinding device for wire-shaped springs according to claim 1, characterized in that: The continuous polishing device comprises a base; the two groups of side panels are both arranged on the base; and an adjustment structure for adjusting the left and right positions of the side panels is arranged between the base and the side panels.

7. The continuous grinding device for wire-shaped springs according to claim 6, characterized in that: The adjustment structure includes a first locking hole arranged on the side panel, a second locking hole arranged on the base and spaced apart on the left and right sides, and a bolt assembly; the first locking hole has a fixed position that matches one of the second locking holes; at the fixed position, the bolt assembly has a locking state in which it is inserted into the first locking hole and the second locking hole and locked.

8. The continuous grinding device for wire-shaped springs according to claim 6, characterized in that: A receiving plate which is arranged tilted up and down and extends forward and backward is provided on the base below the spring conveying space; a spring feeding trough is provided at the tilted lower end of the receiving plate; the spring feeding trough extends in the left-right direction and is tilted up and down.

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