Compression spring end face grinding tool

Abstract

The utility model discloses a compression spring end face grinding tool which comprises a lining, a grinding tool body, a grinding tool body, a grinding tool body, a grinding tool body and a grinding tool body, the lining is provided with a notch, and a compression spring can be arranged in the lining; a first clamping half hole is formed in the mounting plate; and the clamping plate is provided with a second clamping half hole, when the clamping plate and the mounting plate are mutually assembled, the first clamping half hole and the second clamping half hole define a clamping hole, so that the compression spring is hooped by the lining, and the mounting plate and the clamping plate are detachably connected. According to the utility model, the compression spring is hooped by the bushing, and the compression spring is uniformly stressed in the circumferential direction, so that the compression spring is not easy to be damaged by clamping. When the height of the end face of the compression spring needs to be adjusted, the assembling compactness between the clamping plate and the mounting plate is reduced, and then the compression spring can be moved up and down to adjust the end face of the compression spring to the preset height, so that the grinding head grinds the end face of the compression spring by the preset grinding amount. The inner cavity of the lining plays a guiding role on the compression spring, so that the compression spring can stably move up and down.

Description

Technical Field

[0001] The utility model relates to the field of compression spring end surface grinding, and more specifically, to a compression spring end surface grinding tool. Background Art

[0002] When grinding the end surface of the compression spring by a grinding head, a certain clamping force needs to be applied to the compression spring to avoid the compression spring from shrinking when being squeezed by the grinding head and affecting the accuracy of the grinding amount. Those skilled in the art generally use a vise to clamp the compression spring to form a clamping force on the compression spring. However, using a vise to clamp the compression spring can easily damage the compression spring.

[0003] Therefore, how to form a clamping force on the compression spring while preventing the compression spring from being clamped is a key issue that needs to be urgently solved by those skilled in the art. Utility Model Content

[0004] The purpose of the utility model is to prevent the compression spring from being pinched and to better control the grinding amount of the compression spring. To achieve the above purpose, the utility model provides the following technical solutions:

[0005] A compression spring end surface grinding tool, comprising:

[0006] A bushing, wherein a notch extending along the axial direction is provided on the bushing, and a compression spring can be placed in the bushing;

[0007] A mounting plate, wherein the mounting plate is provided with a first clamping half hole;

[0008] A clamping plate having a second clamping half hole. When the clamping plate and the mounting plate are assembled with each other, the first clamping half hole and the second clamping half hole form a clamping hole for clamping the bushing so that the bushing can clamp the compression spring. The mounting plate and the clamping plate are detachably connected.

[0009] Preferably, it further comprises a bottom frame, the mounting plate is fixedly arranged on the bottom frame, and the clamping plate can be assembled and locked on the mounting plate.

[0010] Preferably, it further comprises a lifting device and a lifting column, wherein the lifting column is connected to the lifting end of the lifting device;

[0011] The bottom frame includes a bottom plate and side plates respectively arranged on both sides of the bottom plate, the two ends of the mounting plate are respectively placed on the two side plates, and an accommodation space for accommodating the lifting device is formed between the mounting plate and the bottom plate;

[0012] The lifting column extends into the bushing from below the bushing.

[0013] Preferably, the mounting plate is provided with a first half-column hole adapted to the lifting column, and the clamping plate is provided with a second half-column hole adapted to the lifting column. When the clamping plate is assembled with the mounting plate, the first half-column hole and the second half-column hole form a column hole adapted to the lifting column, and the column hole is communicated with the clamping hole.

[0014] Preferably, the mounting plate comprises an end portion and a main body portion, the main body portion shrinks in a horizontal direction relative to the end portion, a groove is formed at the junction of the end portion and the main body portion, and a protrusion adapted to the groove is provided on the clamping plate.

[0015] Preferably, a first screw hole is provided on the groove wall of the groove located on the main body, and a second screw hole used in conjunction with the first screw hole is provided on the protrusion.

[0016] Preferably, the first clamping half holes are arranged in two groups back to back, and each group of the first clamping half holes is a plurality of the first clamping half holes arranged side by side;

[0017] The clamping plate is provided with a plurality of the second clamping half holes arranged side by side, there are two clamping plates, and the plurality of the second clamping half holes on each clamping plate correspond to a group of the first clamping half holes to form a plurality of the clamping holes;

[0018] There are a plurality of lifting columns, each of which is matched with the bushing in the clamping hole. The plurality of lifting columns are arranged on a lifting plate, and the lifting plate is connected to the lifting end of the lifting device.

[0019] Preferably, on the mounting plate, in a group of the first clamping half holes, a third screw hole is provided between two adjacent first clamping half holes, a fourth screw hole is provided between two adjacent second clamping half holes on one clamping plate, and a fifth screw hole is provided between two adjacent second clamping half holes on another clamping plate, and the corresponding third screw hole, fourth screw hole and fifth screw hole are used in combination.

[0020] Preferably, an upper flange is provided on the upper portion of the bushing, and the upper flange is located on the upper surface of the mounting plate and the upper surface of the clamping plate.

[0021] Preferably, the lifting device is a cylinder or a screw mechanism.

[0022] It can be seen from the above technical scheme that in the present invention, the bushing forms a clamping force on the compression spring, and on the basis of ensuring that the end face of the compression spring is exposed outside the bushing, the bushing can be set to be sufficiently long to ensure that a sufficient portion of the compression spring is clamped by the bushing. In this way, when the grinding head grinds the compression spring, the compression spring will only be slightly compressed, thereby ensuring the accuracy of the grinding amount. At the same time, in the prior art, the compression spring is clamped by a vise, and the force-bearing area of ​​the compression spring is small, so it is easy to be clamped. In the present invention, the bushing is used to clamp the compression spring, and the force-bearing area of ​​the compression spring is relatively large, so it is not easy to be clamped. The grinding tool in the utility model not only forms a clamping force on the compression spring to ensure the accuracy of the grinding amount, but also can prevent the compression spring from being clamped. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the scheme in the embodiment of the utility model, the following is a brief introduction to the drawings required for describing the embodiments. Obviously, the drawings in the following description are only some embodiments of the utility model. For those skilled in the art, other drawings can be obtained based on these drawings without paying creative work.

[0024] Figure 1 A schematic diagram of the overall structure of a compression spring end surface grinding tool provided in a specific embodiment of the utility model;

[0025] Figure 2 A schematic structural diagram of a compression spring grinding tool provided in a specific embodiment of the utility model before assembling a clamping plate;

[0026] Figure 3 A schematic structural diagram of a compression spring grinding tool provided in a specific embodiment of the utility model before assembling a bushing;

[0027] Figure 4 A schematic structural diagram of a clamping plate provided in a specific embodiment of the utility model.

[0028] Among them, 1-bushing, 2-mounting plate, 21-main body, 22-end, 3-clamping plate, 4-bottom frame, 41-bottom plate, 42-side plate, 5-lifting device, 6-lifting plate, 61-side protrusion, 7-lifting column, 8-groove, 9-third screw hole, 10-first clamping half hole, 11-second clamping half hole, 12-second half column hole, 13-fourth screw hole, 14-fifth screw hole, 15-protrusion. DETAILED DESCRIPTION

[0029] The utility model discloses a compression spring end surface grinding tool, which can avoid clamping the compression spring and is conducive to adjusting the height of the compression spring end surface.

[0030] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. 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 embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0031] In the description of the present invention, it is necessary to understand that the terms "upper" and "lower" etc. indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0032] Please refer to the attached Figure 1 and attached Figure 4 The utility model discloses a compression spring end surface grinding tool, which comprises: a bushing 1, a mounting plate 2 and a clamping plate 3.

[0033] Among them, the bushing 1 is provided with a notch extending along the axial direction, and the compression spring can be placed in the bushing 1. The mounting plate 2 is provided with a first clamping half hole 10 that matches the bushing 1, and the clamping plate 3 is provided with a second clamping half hole 11 that matches the bushing 1. When the clamping plate 3 is assembled with the mounting plate 2, the first clamping half hole 10 and the second clamping half hole 11 enclose a clamping hole for clamping the bushing 1. The clamping hole forms a circumferential clamping force on the bushing 1, the notch of the bushing 1 gradually becomes smaller, the inner diameter of the bushing 1 gradually decreases, and the bushing 1 gradually clamps the compression spring. When the clamping plate 3 and the mounting plate 2 are assembled in place, the clamping plate 3 and the mounting plate 2 are locked by a locking member.

[0034] In the utility model, the bushing 1 forms a clamping force on the compression spring, and on the basis of ensuring that the end face of the compression spring is exposed outside the bushing 1, the bushing 1 can be set to be sufficiently long to ensure that a sufficient portion of the compression spring is clamped by the bushing 1. In this way, when the grinding head grinds the compression spring, the compression spring will only be slightly compressed, thereby ensuring the accuracy of the grinding amount. At the same time, in the prior art, the compression spring is clamped by a vise, and the force-bearing area of ​​the compression spring is small, so it is easy to be clamped. In the utility model, the bushing 1 is used to clamp the compression spring, and the force-bearing area of ​​the compression spring is relatively large, so it is not easy to be clamped. The grinding tool in the utility model not only forms a clamping force on the compression spring to ensure the accuracy of the grinding amount, but also can prevent the compression spring from being clamped.

[0035] When the end face height of the compression spring needs to be adjusted, the tightness of the assembly between the clamping plate 3 and the mounting plate 2 is reduced to increase the inner diameter of the clamping hole, and the inner diameter of the bushing 1 is increased accordingly, so that the compression spring can be moved up and down to adjust the end face of the compression spring to a preset height, so that the grinding head grinds the end face of the compression spring by a preset grinding amount. Since the inner cavity of the bushing 1 guides the compression spring, it is ensured that the compression spring moves up and down stably.

[0036] The grinding tool in the present invention further includes a bottom frame 4, and the mounting plate 2 is fixedly arranged on the bottom frame 4. When the mounting plate 2 and the clamping plate 3 are assembled, the mounting plate 2 remains stationary, and only the clamping plate 3 is assembled to the mounting plate 2. After the assembly is in place, the clamping plate 3 is locked on the mounting plate 2. Compared with the scenario where the mounting plate 2 and the clamping plate 3 are assembled with each other, the mounting plate 2 remains stationary, and only the clamping plate 3 is assembled, which can reduce the assembly difficulty.

[0037] The grinding tool in the utility model also includes a lifting device 5 and a lifting column 7. The lifting column 7 is connected to the lifting end of the lifting device 5, and the lifting column 7 can move up and down under the drive of the lifting device 5. The bottom frame 4 includes a bottom plate 41 and two side plates 42, and the two side plates 42 are respectively arranged on both sides of the bottom plate 41. The two ends 22 of the mounting plate 2 are respectively placed on the top of the two side plates 42. An accommodating space for accommodating the lifting device 5 is formed between the mounting plate 2 and the bottom plate 41. The lifting column 7 extends into the bushing 1 from the bottom of the bushing 1. When the lifting column 7 moves up under the drive of the lifting device 5, it will push the compression spring in the bushing 1 to rise, thereby raising the end face height of the compression spring. When the lifting column 7 moves down under the drive of the lifting device 5, the compression spring will move down with the lifting column 7 under the action of gravity, thereby lowering the end face height of the compression spring.

[0038] In the prior art, when a compression spring is clamped by a vise, if the end face height of the compression spring needs to be adjusted, the vise is manually moved up and down, and the manual adjustment method results in low adjustment accuracy. In the present invention, the end face height of the compression spring is adjusted by a lifting device 5, and the lifting device 5 can be electrically controlled to achieve accurate up and down movement of the lifting device 5, thereby achieving accurate adjustment of the end face height of the compression spring.

[0039] When the upper end surface of the compression spring is subjected to grinding by the grinding head, the top end surface of the lifting column 7 will support the compression spring, thereby preventing the compression spring from moving downward, thereby improving the grinding accuracy.

[0040] The lifting device 5 can be specifically a cylinder or a screw mechanism. By controlling the opening and closing of the valve on the cylinder or the rotation speed of the screw in the screw mechanism, the end face height of the compression spring can be accurately controlled.

[0041] The specific embodiment of the utility model further provides a first half-column hole adapted to the lifting column 7 on the mounting plate 2, and a second half-column hole 12 adapted to the lifting column 7 on the clamping plate 3. When the clamping plate 3 and the mounting plate 2 are assembled, the first half-column hole and the second half-column hole 12 enclose a column hole adapted to the lifting column 7. The column hole and the clamping hole are substantially coaxial and communicated. The column hole guides the lifting column 7, ensuring that the lifting column 7 moves up and down accurately.

[0042] The mounting plate 2 specifically includes a main body 21 and two end portions 22. The main body 21 is contracted in the horizontal direction relative to the two end portions 22. A groove 8 is formed at the junction of the main body 21 and the end portions 22. A protrusion 15 adapted to the groove 8 is provided on the clamping plate 3. When assembling the clamping plate 3, the protrusion 15 on the clamping plate 3 is matched in the groove 8, so that the clamping plate 3 can be assembled in place.

[0043] A first screw hole is provided on the groove wall of the groove 8 located on the main body 21, and a second screw hole is provided on the protrusion 15 of the clamping plate 3. The first screw hole and the second screw hole are used in conjunction with each other. The screw passes through the second screw hole and the first screw hole in sequence to lock the clamping plate 3 on the mounting plate 2.

[0044] There are a plurality of first screw holes arranged in a vertical direction, and there are a plurality of second screw holes arranged in a vertical direction. Each first screw hole corresponds to a second screw hole.

[0045] In a specific embodiment of the utility model, the first clamping half holes 10 on the mounting plate 2 are arranged in two groups back to back, and each group of the first clamping half holes 10 is a plurality of first clamping half holes 10 arranged side by side. There are two clamping plates 3, and each clamping plate 3 is provided with a plurality of second clamping half holes 11 arranged side by side. The plurality of second clamping half holes 11 on each clamping plate 3 and the plurality of first clamping half holes 10 in a group of first clamping half holes 10 correspond to each other to form a plurality of clamping holes. In this way, two groups of clamping holes are formed, and each group of clamping holes includes a plurality of clamping holes arranged side by side. A bushing 1 is provided in each clamping hole, and a compression spring is placed in each bushing 1, so that a plurality of compression springs can be ground in one clamping.

[0046] From the above description, it can be known that a lifting column 7 is provided in the bushing 1. For a grinding device clamped with multiple bushings 1, multiple lifting columns 7 are correspondingly provided, and multiple lifting columns 7 are connected to a lifting plate 6, and the lifting plate 6 is connected to the lifting end of the lifting device 5. One lifting of the lifting device 5 can adjust the end surface height of multiple compression springs, thereby improving the grinding efficiency.

[0047] The mounting plate 2 includes a main body 21 and two end portions 22, and the two end portions 22 protrude downward relative to the main body 21 to form lower convex portions. The lifting plate 6 fits in the space enclosed by the two lower convex portions and the lower surface of the main body 21. The two lower convex portions guide the lifting plate 6 to ensure that the lifting plate 6 moves up and down smoothly. The lifting plate 6 protrudes horizontally to both sides relative to the main body 21 to form side convex portions 61. The two side convex portions 61 support the two clamping plates 3 respectively, which is conducive to the assembly of the clamping plates 3.

[0048] On the mounting plate 2, in a group of first clamping half holes 10, a third screw hole 9 is provided between two adjacent first clamping half holes 10. A fourth screw hole 13 is provided between two adjacent second clamping half holes 11 on one clamping plate 3. A fifth screw hole 14 is provided between two adjacent second clamping half holes 11 on another clamping plate 3. The corresponding third screw hole 9, fourth screw hole 13 and fifth screw hole 14 are used in conjunction with one screw, so that the overall locking of two clamping plates 3 and one mounting plate 2 is achieved, thereby improving the reliability of the grinding tooling.

[0049] In the specific embodiment of the utility model, an upper flange is provided on the upper part of the bushing 1, and the outer diameter of the upper flange is larger than the outer diameter of the bushing 1. The upper flange is clamped outside the clamping hole and is located on the upper surface of the mounting plate 2 and the clamping plate 3. The upper flange ensures that the bushing 1 is assembled in place on the one hand, and facilitates the removal of the bushing 1 from the clamping hole on the other hand.

[0050] In the specific embodiment of the utility model, two groups of first clamping half holes 10 are set on the mounting plate 2, and each group of first clamping half holes 10 includes 5 first clamping half holes 10. There are two clamping plates 3, and each clamping plate 3 is provided with 5 second clamping half holes 11. After the two clamping plates 3 are assembled with the mounting plate 2, 10 clamping holes are formed, and a bushing 1 is set in each clamping hole, and a total of 10 bushings 1 are provided, so that 10 compression springs can be clamped at one time. When clamping, the two clamping plates 3 are pre-assembled on the mounting plate 2, and screws are inserted into the corresponding first screw holes and second screw holes, and screws are inserted into the corresponding third screw holes 9, fourth screw holes 13 and fifth screw holes 14, and all screws are not completely screwed. The 10 compression springs are driven upward by the lifting device 5 so that the end faces of the 10 compression springs are located at a preset height. After that, all the screws are screwed, and the grinding head grinds the end faces of the 10 compression springs.

[0051] Finally, it should be noted that the terms "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device that includes a series of elements includes not only those elements, but also other elements that are not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of more restrictions, an element defined by the phrase "comprises a ..." does not exclude the presence of other identical elements in the process, method, article or device that includes the element.

[0052] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0053] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A compression spring end surface grinding tool, characterized in that: include: A bushing (1), wherein the bushing (1) is provided with a notch extending along the axial direction, and a compression spring can be placed in the bushing (1); A mounting plate (2), wherein the mounting plate (2) is provided with a first clamping half hole (10); A clamping plate (3), wherein a second clamping half hole (11) is provided on the clamping plate (3); when the clamping plate (3) and the mounting plate (2) are assembled with each other, the first clamping half hole (10) and the second clamping half hole (11) enclose a clamping hole for clamping the bushing (1), so that the bushing (1) clamps the compression spring; and the mounting plate (2) and the clamping plate (3) are detachably connected.

2. The compression spring end surface grinding tool according to claim 1, characterized in that: It also comprises a bottom frame (4), the mounting plate (2) is fixedly arranged on the bottom frame (4), and the clamping plate (3) can be assembled and locked on the mounting plate (2).

3. The compression spring end surface grinding tool according to claim 2, characterized in that: It also includes a lifting device (5) and a lifting column (7), wherein the lifting column (7) is connected to the lifting end of the lifting device (5); The bottom frame (4) comprises a bottom plate (41) and side plates (42) arranged on both sides of the bottom plate (41); the two ends (22) of the mounting plate (2) are respectively placed on the two side plates (42); and an accommodation space for accommodating the lifting device (5) is formed between the mounting plate (2) and the bottom plate (41); The lifting column (7) extends from the bottom of the bushing (1) into the bushing (1).

4. The compression spring end surface grinding tool according to claim 3, characterized in that: The mounting plate (2) is provided with a first half-column hole adapted to the lifting column (7), and the clamping plate (3) is provided with a second half-column hole (12) adapted to the lifting column (7); when the clamping plate (3) and the mounting plate (2) are assembled, the first half-column hole and the second half-column hole (12) form a column hole adapted to the lifting column (7), and the column hole is communicated with the clamping hole.

5. The compression spring end surface grinding tool according to claim 1, characterized in that: The mounting plate (2) comprises an end portion (22) and a main body portion (21); the main body portion (21) is contracted in a horizontal direction relative to the end portion (22); a groove (8) is formed at the junction of the end portion (22) and the main body portion (21); and a protrusion (15) adapted to the groove (8) is provided on the clamping plate (3).

6. The compression spring end surface grinding tool according to claim 5, characterized in that: A first screw hole is provided on the groove wall of the groove (8) located on the main body (21), and a second screw hole used in conjunction with the first screw hole is provided on the protrusion (15).

7. The compression spring end surface grinding tool according to claim 3, characterized in that: The first clamping half holes (10) are arranged in two groups back to back, and each group of the first clamping half holes (10) is a plurality of the first clamping half holes (10) arranged side by side; The clamping plate (3) is provided with a plurality of the second clamping half holes (11) arranged side by side, there are two clamping plates (3), and the plurality of the second clamping half holes (11) on each clamping plate (3) corresponds to a group of the first clamping half holes (10) to form a plurality of the clamping holes; There are a plurality of lifting columns (7), each of which is adapted to a bushing (1) in a clamping hole. The plurality of lifting columns (7) are arranged on a lifting plate (6), and the lifting plate (6) is connected to the lifting end of the lifting device.

8. The compression spring end surface grinding tool according to claim 7, characterized in that: The mounting plate (2) comprises a main body (21) and two end portions (22), the two end portions (22) protrude downward relative to the main body (21) to form lower convex portions, and the lifting plate (6) is located in a space enclosed by the two lower convex portions and the lower surface of the main body (21); The lifting plate (6) protrudes horizontally relative to the main body (21) along the arrangement direction of the two groups of the first clamping half holes (10) to form a side convex portion (61), and the side convex portion (61) supports the clamping plate (3).

9. The compression spring end surface grinding tool according to claim 7, characterized in that: On the mounting plate (2), in a group of the first clamping half holes (10), a third screw hole (9) is provided between two adjacent first clamping half holes (10), a fourth screw hole (13) is provided between two adjacent second clamping half holes (11) on one clamping plate (3), and a fifth screw hole (14) is provided between two adjacent second clamping half holes (11) on another clamping plate (3), and the corresponding third screw hole (9), fourth screw hole (13) and fifth screw hole (14) are used in conjunction with each other.

10. The compression spring end surface grinding tool according to claim 1, characterized in that: An upper flange is provided on the upper portion of the bushing (1), and the upper flange is located on the upper surface of the mounting plate (2) and the upper surface of the clamping plate (3).

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