Spring grinding structure

Abstract

The utility model provides a kind of spring grinding structure, including being set on the positioning hole of several circumferential direction settings in turn disc, grinding sleeve includes fixed sleeve and telescopic sleeve, telescopic sleeve includes conical cylinder and circular sleeve, conical cylinder is opened and is passed through conical passage in up and down, to make circular sleeve fixed in conical cylinder, the communication of second passage and conical passage forms step;The telescopic sleeve of the utility model is sectional design, forms step at the connecting place of conical cylinder and circular sleeve, when the position of telescopic sleeve is adjusted, by hook rod and step cooperation, drive telescopic sleeve or grinding sleeve to rise, conversely, if drop, can press telescopic sleeve top end part, can drop, conical cylinder in telescopic sleeve is opened and is passed through conical passage in up and down, can automatically correct position when spring is put in, reach the purpose of automatic centering.

Description

Technical Field

[0001] This utility model relates to a grinding spring structure and belongs to the field of spring production equipment. Background Technology

[0002] To ensure the perpendicularity of the helical compression spring and maintain contact between the end faces of the two support rings and other parts, reducing deflection and ensuring the characteristics of the main unit (or components), both end faces of the helical compression spring are generally ground. This process is commonly referred to as spring grinding. There are roughly three operating methods for spring grinding: manual grinding, semi-automatic grinding, and automatic grinding. To enhance the grinding effect, patent application number CN201922163253.1, entitled "A Grinding Sleeve for Spring Grinding," discloses that the length of the spring 13 to be ground and the position of the end face to be ground are determined according to the requirements. The height of the telescopic section within the fixed sleeve is adjusted and fixed with bolts 3, so that the height of the grinding sleeve matches the height of the spring to be processed, thus adapting to different heights.

[0003] However, in actual use, since each spring has a different diameter, different grinding sleeves need to be replaced. It is very troublesome to remove the existing grinding sleeves from the positioning holes. Moreover, after mass use, the inner wall of the grinding sleeve is prone to deformation or the springs are placed crookedly, which can easily cause the spring axis to be non-perpendicular to the end face of the grinding wheel.

[0004] Therefore, this utility model provides a grinding spring structure with an automatic centering function. Utility Model Content

[0005] In view of this, the purpose of this utility model is to provide a grinding spring structure with an automatic centering function.

[0006] This utility model is implemented as follows:

[0007] A grinding spring structure includes a plurality of positioning holes arranged in a circumferential direction on a turntable, and a grinding sleeve is installed in each positioning hole;

[0008] The grinding sleeve includes a fixed sleeve and a telescopic sleeve, the fixed sleeve being embedded in the positioning hole, and the telescopic sleeve being housed within the telescopic sleeve;

[0009] The telescopic sleeve includes a conical cylinder and a circular sleeve. The conical cylinder has a vertically penetrating conical channel, and the circular sleeve has a vertically penetrating second channel in the middle. The horizontal width of the second channel is greater than the horizontal width of the bottom of the conical channel, so that when the circular sleeve is fixed to the conical cylinder, a step is formed at the connection between the second channel and the conical channel.

[0010] As a further improvement, the present invention also includes a hook rod that works in conjunction with the grinding sleeve. One end of the hook rod is provided with a bent portion so that when the hook rod extends into the telescopic sleeve, it works in conjunction with the step to drive the telescopic sleeve or the grinding sleeve to rise.

[0011] As a further improvement, the outer surface of the telescopic sleeve is provided with several adjustment holes. The present invention also includes an adjustment bolt, which passes through the outside of the fixed sleeve and is threadedly connected to the adjustment hole of the tapered cylinder.

[0012] As a further improvement, the fixed sleeve is divided into a first shaft section and a second shaft section, the first shaft section and the second shaft section are vertically fixed, and a telescopic sleeve is detachably installed in the first shaft section.

[0013] As a further improvement, a third channel is provided inside the second shaft segment, and the inner diameter of the third channel is the same as the inner diameter of the bottom end of the conical cylinder.

[0014] As a further improvement, the vertical height h of the circular sleeve is 3-5 mm.

[0015] As a further improvement, a magnetic strip is embedded in the inner wall of the bottom end of the second shaft section to attract a spring made of metal material.

[0016] As a further improvement, this utility model also includes a grinding head and a cylinder for controlling the operation of the grinding head.

[0017] As a further improvement, the present invention also includes a machine base, a rotating shaft, and a motor. The turntable is mounted on the machine base, and one end of the rotating shaft is fixed in the center of the turntable, while the other end passes through the top surface of the machine base and is fixed to the output end of the motor located inside the machine base.

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

[0019] ① Compared with traditional grinding sleeves, the telescopic sleeve of this utility model is designed in sections, forming a step at the connection between the conical cylinder and the circular sleeve. When adjusting the position of the telescopic sleeve, the hook rod cooperates with the step to drive the telescopic sleeve or grinding sleeve to rise. Conversely, if it is to descend, the top of the telescopic sleeve can be pressed to lower it. Moreover, the smooth movement of the telescopic sleeve during adjustment and its fixation after adjustment are not affected by the pressure of the grinding head.

[0020] ② In order to prevent the spring from shifting, the perpendicularity between the spring axis and the end face of the grinding wheel is >0.1mm / 100mm. In the aforementioned solution, a tapered channel is opened in the tapered cylinder of the telescopic sleeve, which can automatically correct the position when the spring is inserted, thus achieving the purpose of automatic centering. Attached Figure Description

[0021] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0022] Figure 1 This is a plan view of a spring grinding machine provided in an embodiment of the present invention.

[0023] Figure 2 This is a partial structural schematic diagram of a spring grinding machine provided in an embodiment of the present invention.

[0024] Figure 3 This is a top view schematic diagram of a grinding spring structure provided in an embodiment of this utility model.

[0025] Figure 4 This is a cross-sectional schematic diagram of a grinding spring structure provided in an embodiment of the present invention. Figure 1 .

[0026] Figure 5 This is a cross-sectional schematic diagram of a grinding spring structure provided in an embodiment of the present invention. Figure 2 .

[0027] Figure 6 This is a schematic cross-sectional view of a telescopic sleeve with a grinding spring structure provided in an embodiment of this utility model.

[0028] Reference numerals: Turntable 1, Grinding sleeve 2, Hook rod 3, Grinding head 4, Cylinder 5, Machine base 6, Rotating shaft 7, Motor 8, Fixed sleeve 201, Telescopic sleeve 202, Conical cylinder 221, Circular sleeve 222, Conical channel 223, Second channel 224, Adjusting hole 225, Adjusting bolt 226, First shaft section 211, Second shaft section 212, Third channel 212-1. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model. Therefore, the following detailed description of the embodiments of this utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely represents selected embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0030] In the description of this utility model, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0031] Reference Figures 1-6 As shown, this embodiment provides a specific implementation of a grinding spring structure, including a plurality of positioning holes 110 arranged along the circumferential direction on a turntable 1, and a grinding sleeve 2 is installed in each positioning hole 110;

[0032] The grinding sleeve 2 includes a fixed sleeve 201 and a telescopic sleeve 202. The fixed sleeve 201 is embedded in the positioning hole 110, and the telescopic sleeve 202 is accommodated in the telescopic sleeve 202.

[0033] The telescopic sleeve 202 includes a conical cylinder 221 and a circular sleeve 222. The conical cylinder 221 has a vertically penetrating conical channel 223, and the circular sleeve 222 has a vertically penetrating second channel 224 in the middle. The horizontal width of the second channel 224 is greater than the horizontal width of the bottom end of the conical channel 223, so that when the circular sleeve 222 is fixed to the conical cylinder 221, a step is formed at the connection between the second channel 224 and the conical channel 223.

[0034] In this embodiment, the present invention also includes a hook rod 3 that cooperates with the grinding sleeve 2. One end of the hook rod 3 is provided with a bent portion so that when the hook rod 3 extends into the telescopic sleeve 202, it cooperates with the step to drive the telescopic sleeve 202 or the grinding sleeve 2 to rise.

[0035] In the above technical solution, compared with the traditional grinding sleeve, the telescopic sleeve 202 of this utility model is designed in sections, and a step is formed at the connection between the conical cylinder 221 and the circular sleeve 222. When adjusting the position of the telescopic sleeve 202, the hook rod 3 cooperates with the step to drive the telescopic sleeve 202 or the grinding sleeve 2 to rise. Conversely, if it is to descend, the top of the telescopic sleeve 202 can be pressed to lower it.

[0036] In order to ensure smooth movement of the telescopic sleeve 202 during adjustment and fixation after adjustment, without being affected by the pressure of the grinding head 4, the outer surface of the telescopic sleeve 202 of this utility model is provided with several adjustment holes 225. This utility model also includes an adjustment bolt 226, which passes through the outside of the fixed sleeve 201 and is threadedly connected to the adjustment hole 225 of the tapered cylinder 221.

[0037] The specific operation is as follows: When it is necessary to adjust the telescopic sleeve 202, remove the adjusting bolt 226, adjust the position of the telescopic sleeve 202 according to the above method, check the adjusting hole 225 at the position, and let the adjusting bolt 226 re-penetrate from the outside of the fixed sleeve 201 and thread it into the adjusting hole 225 of the tapered cylinder 221. The threaded connection method ensures a tight fit and prevents problems such as skewing.

[0038] In this embodiment, in order to prevent the spring from shifting, the perpendicularity between the spring axis and the end face of the grinding wheel is >0.1mm / 100mm. In the aforementioned solution, it is indicated that the tapered cylinder 221 of the telescopic sleeve 202 has a tapered channel 223 that runs vertically through it. When the spring is inserted, it can automatically correct its position and achieve the purpose of automatic centering.

[0039] Meanwhile, the fixed sleeve 201 is divided into a first shaft section 211 and a second shaft section 212. The first shaft section 211 and the second shaft section 212 are vertically fixed, and a telescopic sleeve 202 is detachably installed in the first shaft section 211.

[0040] Furthermore, a third channel 212-1 is provided inside the second shaft segment 212, and the inner diameter of the third channel 212-1 is the same as the inner diameter of the bottom end of the conical cylinder 221.

[0041] After the spring is inserted, the center position of the second shaft segment 212 can be determined to prevent it from shifting.

[0042] In this embodiment, the vertical height h of the circular sleeve 222 is 3-5mm. When the telescopic sleeve 202 is located at the bottom of the first shaft section 211, the step of the telescopic sleeve 202 still exists. When the hook rod is used, it can still cooperate with the step to drive the telescopic sleeve 202 or the grinding sleeve 2 to rise.

[0043] In other embodiments, a magnetic strip 212-2 is embedded in the inner wall of the bottom end of the second shaft segment 212 to attract a spring made of metal material and enhance the verticality of the spring placement.

[0044] This utility model also includes a grinding head 4 and a cylinder 5 for controlling the operation of the grinding head. The grinding head 4 cooperates with the turntable so that the cylinder 5 moves up and down to control the grinding head 4 to grind the spring located in a part of the turntable.

[0045] A spring grinding machine, in addition to the grinding structure described above, also includes a machine base 6, a rotating shaft 7, and a motor 8. The turntable 1 is mounted on the machine base 6, and one end of the rotating shaft 7 is fixed in the center of the turntable 1, while the other end passes through the top surface of the machine base 6 and is fixed to the output end of the motor 8 located inside the machine base 6, so that the motor 8 drives the turntable 1 to rotate to realize the turntable 1 to process in different areas.

[0046] 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, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A grinding spring structure, characterized in that, It includes several positioning holes (110) arranged along the circumferential direction on the turntable (1), and a grinding sleeve (2) is installed in each positioning hole (110); The grinding sleeve (2) includes a fixed sleeve (201) and a telescopic sleeve (202). The fixed sleeve (201) is embedded in the positioning hole (110), and the telescopic sleeve (202) is housed in the telescopic sleeve (202). The telescopic sleeve (202) includes a conical cylinder (221) and a circular sleeve (222). The conical cylinder (221) has a vertically penetrating conical channel (223), and the circular sleeve (222) has a vertically penetrating second channel (224) in the middle. The horizontal width of the second channel (224) is greater than the horizontal width of the bottom end of the conical channel (223), so that when the circular sleeve (222) is fixed to the conical cylinder (221), a step is formed at the connection between the second channel (224) and the conical channel (223).

2. The grinding spring structure according to claim 1, characterized in that, It also includes a hook rod (3) used in conjunction with the grinding sleeve (2), one end of which is provided with a bent part so that when the hook rod (3) is inserted into the telescopic sleeve (202), it cooperates with the step to drive the telescopic sleeve (202) or the grinding sleeve (2) to rise.

3. The grinding spring structure according to claim 1, characterized in that, The telescopic sleeve (202) has several adjustment holes (225) on its outer surface and also includes an adjustment bolt (226). The adjustment bolt (226) passes through the outside of the fixed sleeve (201) and is threadedly connected to the adjustment hole (225) of the tapered cylinder (221).

4. The grinding spring structure according to claim 1, characterized in that, The fixed sleeve (201) is divided into a first shaft section (211) and a second shaft section (212). The first shaft section (211) and the second shaft section (212) are vertically fixed, and a telescopic sleeve (202) is detachably installed in the first shaft section (211).

5. The grinding spring structure according to claim 4, characterized in that, The second shaft segment (212) has a third channel (212-1) inside, and the inner diameter of the third channel (212-1) is the same as the inner diameter of the bottom end of the conical cylinder (221).

6. The grinding spring structure according to claim 1, characterized in that, The vertical height h of the circular sleeve (222) is 3-5 mm.

7. The grinding spring structure according to claim 4, characterized in that, A magnetic strip is embedded in the inner wall of the bottom end of the second shaft segment (212) to attract a spring made of metal material.

8. The grinding spring structure according to claim 1, characterized in that, It also includes a grinding head (4) and a cylinder (5) for controlling the operation of the grinding head.

9. The grinding spring structure according to claim 8, characterized in that, It also includes a machine base (6), a rotating shaft (7) and a motor (8). The turntable (1) is mounted on the machine base (6), and one end of the rotating shaft (7) is fixed in the center of the turntable (1), while the other end passes through the top surface of the machine base (6) and is fixed to the output end of the motor (8) located inside the machine base (6).

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