Spring grinding machine

Abstract

The utility model relates to the technical field of spring machining, in particular to a spring grinding machine which comprises a shell and is characterized in that a second motor is fixedly connected in the shell, two sets of fixing tables are symmetrically distributed and fixedly connected to the second motor, the surfaces of the two fixing tables of each set of fixing tables are rotationally connected with a first rotating shaft in a penetrating mode, and the first rotating shaft is connected with a second rotating shaft in a penetrating mode. A rotating plate is fixedly connected to one surface of each rotating shaft, two push covers are symmetrically distributed and movably connected to the position, between the two fixing tables, in the shell, a supporting rod is fixedly connected to the surface of each push cover, and a grinding mechanism is arranged at the position, where each supporting rod is located, in the shell; the spring can be directly located at the grinding position through the push rod, the center of the spring is supported through the center supporting rod, the spring cannot deviate due to extrusion and supporting of the supporting plate and the pressing plate, dislocation cannot be generated, the grinding face makes good contact with the grinding wheel, and the use requirement is met.

Description

Technical Field

[0001] The utility model relates to the technical field of spring processing, in particular to a spring grinder. Background Art

[0002] In the process of producing springs, a spring grinder is needed to grind the end face of the spring that has been wound and formed, and to grind the spiral line of the spring end face flat so that the end face of the spring can better fit the part when in use. The grinding disc of the grinder will inevitably wear out under long-term use. Since the contact part between the grinding disc and the spring end face is always annular and remains unchanged, the contact part will be concave due to long-term wear, which will easily cause an annular groove to be produced on the surface of the grinding disc, affecting the service life of the grinding disc. Therefore, in order to extend the life of the grinding disc, it is necessary to design a spring grinder to avoid frequent replacement of the grinding disc and reduce economic consumption.

[0003] A Chinese patent with authorization publication number CN214817219U discloses a spring grinder, comprising a frame, a grinding disc, and a mounting platform for mounting a spring, wherein the grinding disc is rotatably connected to the frame, the mounting platform is mounted on the mounting platform in a radially sliding manner along the grinding disc, and the frame is equipped with a driving member, which drives the mounting platform to slide back and forth in the radial direction of the grinding disc.

[0004] However, the above has the following shortcomings:

[0005] 1. According to the description in the above patent, relying solely on the support plate and the upper end downward pressure device to stabilize the position of the spring can provide a certain supporting force. However, during the grinding process, since the spring is hollow inside and has an overall spiral structure, it is easy to deviate toward the center when subjected to force, resulting in dislocation, resulting in poor grinding effect and failure to meet usage requirements.

[0006] 2. The above patent requires confirmation of the spring position when placing the spring to ensure the strength of contact between the spring grinding surface and the grinding wheel. This process requires workers to confirm the position of the spring every time they place the spring, which wastes a lot of time and reduces work efficiency. Utility Model Content

[0007] In order to overcome the deficiencies of the prior art, the utility model solves the technical problem of arranging a push rod to push the spring to a position where it can fully contact the grinding wheel to ensure the grinding effect. A central support rod is arranged at the pushing end so that the center of the spring is supported. In addition, support rods of different diameters can be replaced according to the different diameters of the springs during mass production to avoid the spring being dislocated or offset due to the support of the central object when the spring is under pressure. The use of the push rod to push the spring avoids the need for workers to confirm the placement position of the spring every time when placing the spring, thereby improving work efficiency.

[0008] In order to achieve the above-mentioned purpose, the utility model provides the following technical solution: a spring grinder, comprising an outer shell, characterized in that a second motor is fixedly connected inside the outer shell, two groups of fixed tables are symmetrically distributed and fixedly connected on the second motor, the two fixed table surfaces of each group of the fixed tables are rotatably connected with a rotating shaft one, and each surface of the rotating shaft one is fixedly connected to a rotating plate, and two push covers are symmetrically distributed and movably connected between the two groups of fixed tables in the outer shell, and each push cover surface is fixedly connected to a support rod, and a grinding mechanism is provided at the position of each support rod in the outer shell.

[0009] Furthermore, between each group of the fixed tables, two groups of turntables 1 are symmetrically distributed and fixedly connected between the rotating plate and the working plate, each of the turntables 1 is rotatably connected with a rotating shaft 2, each of the rotating shafts 2 is fixedly connected to a turntable 2 on the surface between the turntables 1, each turntable 2 located on the surface of the working plate is fixedly connected to the cylinder body of an electric cylinder 1 on the surface, and each slide rod 2 located on the surface of the turntable is fixedly connected to the telescopic end of the electric cylinder 1 on the surface.

[0010] Furthermore, the outer shell surface is symmetrically distributed and fixedly connected to the cylinder bodies of two hydraulic rods 2, the telescopic end of each hydraulic rod 2 passes through and is connected to a push cover, the telescopic end of each hydraulic rod 2 is provided with a thread groove, and the inner surface of each push cover is provided with a thread that cooperates with the thread groove at the corresponding position, the outer shell surface is fixedly connected to the top plate, and the surface of the top plate is symmetrically distributed and fixedly connected to the cylinder bodies of two hydraulic cylinders 1, the telescopic end of the hydraulic cylinder 1 passes through the top plate and is fixedly connected to a limiting block, and the lower surface of the limiting block is a circular arc depression.

[0011] Furthermore, the top plate surface is symmetrically provided with two avoidance grooves at the positions of the two groups of fixed platforms, and the shell surface is symmetrically distributed and fixedly connected with two feed troughs at the positions of the two top plate avoidance grooves. The inclined surface of each feed trough points to the gap between a group of rotating plates at the corresponding position, and the shell surface is symmetrically distributed and fixedly connected with two fixed blocks at the positions of the two feed troughs.

[0012] Furthermore, the grinding mechanism includes a moving platform, the surface of the moving platform is fixedly connected to the cylinder body of the electric cylinder 2, the telescopic end of the electric cylinder 2 passes through the moving platform and is fixedly connected to the lifting platform, the surface of the lifting platform is fixedly connected to the slide rod 2, the surface of the moving platform is provided with an extension plate, the slide rod 2 passes through and is slidably connected to the extension plate, the surface of the lifting platform is rotatably connected to the rotating shaft 3, and the end of the rotating shaft 3 is fixedly connected to the grinding wheel.

[0013] Furthermore, the surface of the lifting platform is fixedly connected to a second motor frame, the surface of the second motor frame is fixedly connected to a second motor, the transmission end of the second motor is transmission-connected to a third rotating shaft, and the third rotating shaft is rotationally connected to the second motor frame.

[0014] Furthermore, a slide rod 1 is fixedly connected to the surface of the shell, a fixed column is fixedly connected to the center of the surface of the working plate, the slide rod 1 passes through the surface of the fixed column, and screws are symmetrically distributed and rotatably connected between the inside of the shell and the fixed column. A first motor is fixedly connected to the surface of the shell at the position of each screw, and the transmission end of the first motor is transmission-connected to the screw, and the movable platform is transmission-connected to the surface of the screw and slidably connected to the slide rod 1.

[0015] In summary, compared with the prior art, the beneficial effects of the present invention are:

[0016] (1) A central support column is provided to support the center of the spring so that the spring will not be dislocated or offset under the support force of the rotating plate and the limiting block, thereby ensuring the contact position between the grinding surface and the grinding wheel, so that the grinding surface can meet the use requirements.

[0017] (2) A push rod is used to push the spring from any supporting position on the rotating plate to a position where the grinding surface and the grinding wheel can be in close contact. There is no need to repeatedly confirm the position of the spring each time, which facilitates the grinding work and improves work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a three-dimensional schematic diagram of this patent.

[0019] Figure 2 This is a side view of the patent.

[0020] Figure 3 for Figure 2 Stereoscopic cross-sectional view at AA in the middle.

[0021] Figure 4 This is a side cross-sectional view of this patent.

[0022] Figure 5 It is a three-dimensional view of the rotating support platform.

[0023] Figure 6 This is an exploded three-dimensional structural view of the grinding mechanism.

[0024] Figure 7 This is an exploded three-dimensional structural view of the push rod.

[0025] Explanation of the reference numerals: outer shell 10; carrying box 11; feeding trough 12; fixed block 13; top plate 14; hydraulic cylinder one 15; hydraulic rod two 16; first motor 17; working plate 18; fixed platform 19; rotating shaft one 20; rotating shaft two 21; turntable one 22; electric cylinder one 23; push cover 24; support rod 25; turn plate 26; limiting block 27; second motor 28; second motor frame 29; lifting platform 30; rotating shaft three 31; grinding wheel 32; extension plate 33; electric cylinder two 34; slide rod one 35; screw 36; moving platform 37; fixed column 38; thread groove 39; thread 40; slide rod two 41; turntable two 42. DETAILED DESCRIPTION

[0026] In order to enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0027] like Figure 1 、 Figure 2 、 Figure 3 and Figure 5 As shown, a spring grinder includes a shell 10 and a working plate 18, the working plate 18 is fixedly connected to the shell 10, and two groups of fixed tables 19 are symmetrically distributed and fixedly connected on the surface of the working plate 18, and each fixed table 19 is rotatably connected to a rotating shaft 20 at the upper end, and each rotating shaft 20 is fixedly connected to a rotating plate 26 on the surface of the fixed table 19, and a turntable 1 22 is symmetrically distributed and fixedly connected between each pair of fixed tables 19 and the rotating plate 26, and each turntable 1 22 is rotatably connected to a rotating shaft 21, and each rotating shaft 21 is rotatably connected to a turntable 2 42 on the surface of the turntable 1 22, and each turntable 2 42 located on the surface of the turntable 1 22 on the surface of the working plate 18 is fixedly connected to the cylinder body of the electric cylinder 1 23, and each turntable 2 42 located on the surface of the rotating plate 26 is fixedly connected to the telescopic end of the electric cylinder 1 23.

[0028] By setting up the turntable 2 42 to drive the rotating plate 26 to rotate, a set of fixed platforms 19 can provide support force for the spring, and by rotating the rotating plate 26, the center height of the spring is raised, which facilitates the subsequent support of the inside of the spring.

[0029] like Figure 1 、 Figure 3 and Figure 4 As shown, the surface of the outer shell 10 is fixedly connected to a top plate 14, and the surface of the top plate 14 is symmetrically distributed with the cylinder bodies of two hydraulic cylinders 15 fixedly connected. The telescopic end of the hydraulic cylinder 15 passes through the top plate 14 and is fixedly connected to a limiting block 27. The surface of the top plate 14 is symmetrically provided with avoidance grooves. The surface of the outer shell 10 is fixedly connected to a feed trough 12 located in the avoidance groove of each top plate 14. Each feed trough 12 is located on the surface of the outer shell 10 and is fixedly connected to a fixed block 13. The inner shell 10 is located below the working plate 18 and is slidably connected to a carrying box 11.

[0030] By setting up the feeding trough 12, the operator can easily put the spring in, and by setting up the hydraulic cylinder 15, the limiting block 27 is pushed down, so that the limiting block 27 can support the spring together with the two rotating plates 26, and by setting up the carrying box 11, the polished spring is received.

[0031] like Figure 1 、 Figure 3 、 Figure 4 and Figure 7 As shown, the surface of the housing 10 is symmetrically distributed between each group of fixed platforms 19 and is fixedly connected to the cylinder bodies of two hydraulic rods 16. The telescopic end of each hydraulic rod 16 is threadedly connected to a push cover 24. The telescopic end of each hydraulic rod 16 is provided with a thread groove 39. A thread 40 that cooperates with the thread groove 39 is provided in each push cover 24. A support rod 25 is fixedly connected to the center of each push cover 24.

[0032] By setting a hydraulic rod 216 to drive the push cover 24 to push the spring, and by setting a support rod 25 at the center of the push cover 24 to support the center of the spring, the spring will not deviate to the center position due to the clamping of the two rotating plates 26 and the limiting block 27 under the support of the support rod 25, so that the spring will not be misplaced, and the polished surface of the spring is in full contact with the polishing wheel, so that the polished surface can meet the use requirements. The push cover 24 with a threaded connection is set, so that the operator can replace the push cover 24, thereby replacing the support rod 25, providing better support for the center of the spring.

[0033] like Figure 4 and Figure 6 As shown, a fixed column 38 is fixedly connected to the center of the surface of the working plate 18 in the housing 10, and a slide rod 35 is fixedly connected to the surface of the housing 10 through the fixed column 38. A lead screw 36 is symmetrically distributed and rotatably connected between the housing 10 and the fixed column 38 and below the slide rod 35. A first motor 17 is fixedly connected to each lead screw 36 on the surface of the housing 10. The transmission end of the first motor 17 is connected to the lead screw 36 for transmission. A moving platform 37 is condensed on the surface of each lead screw 36 for transmission. The moving platform 37 is slidably connected to the slide rod 35, and the surface of the moving platform 37 is fixedly connected to the cylinder body of the electric cylinder 2 34. The telescopic end of the second electric cylinder 34 passes through the movable platform 37 and is fixedly connected to the lifting platform 30. The surface of the lifting platform 30 is fixedly connected to the second slide bar 41. The surface of the movable platform 37 is fixedly connected to the extension plate 33. The second slide bar 41 is slidably connected in the extension plate 33. The surface of the lifting platform 30 is fixedly connected to the second motor frame 29. The surface of the second motor frame 29 is fixedly connected to the second motor 28. The transmission end of the second motor 28 is transmission-connected to the third rotating shaft 31. The third rotating shaft 31 is rotatably connected to the second motor frame 29. The third rotating shaft 31 is rotatably connected to the lifting platform 30. The surface of the third rotating shaft 31 is fixedly connected to the grinding wheel 32.

[0034] By setting the first motor 17 and the second electric cylinder 34 in linkage, the grinding wheel 32 can contact the grinding surface at different positions, evenly wear the grinding wheel 32 at each position, thereby reducing the loss of the grinding wheel 32 and increasing the service life of the grinding wheel 32. The second motor 28 is used to drive the rotating shaft 31 to rotate, so that the grinding wheel 32 rotates at high speed to complete the grinding work.

[0035] In this embodiment, initially, the operator connects the device to the power supply and control system. At this time, each hydraulic cylinder 15 and each hydraulic rod 2 16 are in a fully retracted state, each electric cylinder 1 23 is in a fully retracted state, each grinding wheel 32 is in contact with the inner surface of the housing 10, and each electric cylinder 2 34 is in a fully retracted state.

[0036] Before use, the operator will fit the push cover 24 with the support rod 25 of the same diameter as the spring to be polished on the thread groove 39 of the telescopic end of the hydraulic rod 2 16 through the thread 40. After the installation is completed, the electric cylinder 1 23 is turned on to drive each rotating plate 26 to rotate along the axis of the rotating shaft 20, so that the gap between each group of rotating plates 26 will not cause the spring to fall. The spring is put into the feed trough 12 so that the spring slides along the slope of the feed trough 12 and falls to the surface of the rotating plate 26, so that the two rotating plates 26 carry the spring. At this time, continue to use the electric cylinder 1 23 to drive the rotating plate 26 to rotate, so that each group of rotating plates 26 lifts the center height of the carried spring so that the center height of the spring is flush with the center of the support rod 25.

[0037] After the center of the spring is aligned with the center of the support rod 25, the two hydraulic rods 2 16 are opened to drive the push cover 24 to move, so that each support rod 25 enters the center of the corresponding spring, so that the center of the spring is supported, and the spring moves along the axis of the support rod 25 with the push cover 24. After the push cover 24 pushes the spring to the grinding position, the two hydraulic cylinders 15 are opened to drive the limiting block 27 to move, so that the limiting block 27 squeezes the spring, so that the rotating plate 26 and the limiting block 27 provide support force for the spring, so that the spring position is fixed.

[0038] After the fixation is completed, the two first motors 17 are turned on to drive the screw 36 to rotate so that the movable platform 37 moves along the axial direction of the screw 36. At this time, the electric cylinder 2 34 is turned on to drive the lifting platform 30 to move along the axial direction of the slide rod 2 41, so that the lifting platform 30 drives the grinding wheel 32 connected to the rotating shaft 31 to move along the axial direction of the rotating shaft 31, so that the surface of the grinding wheel 32 can contact the grinding surface of the spring, reducing the wear on the surface of the grinding wheel 32 and extending the life of the grinding wheel 32. The second motor 28 is turned on to drive the rotating shaft 31 to rotate at high speed, so that the grinding wheel 32 can complete the grinding work.

[0039] When the grinding mechanism completes grinding, the first motor 17 drives the screw 36 to reverse, so that the movable platform 37 moves along the axis of the screw 36. At this time, the electric cylinder 2 34 contracts to move the lifting platform 30 upward, so that the grinding wheel 32 is away from the spring grinding surface.

[0040] When the grinding wheel 32 leaves the spring grinding surface, the hydraulic rod 2 16 contracts and drives the push cover 24 to move, so that the support rod 25 is separated from the center of the spring. After separation, the hydraulic cylinder 1 15 contracts and drives the limiting block 27 to move upward. At the same time, the electric cylinder 1 23 contracts and drives the rotating plate 26 to rotate downward, so that the center stiffness of the spring is reduced.

[0041] When the center of the spring is lowered, the hydraulic rod 216 relaxes and drives the push cover 24 to move, so that the support rod 25 pushes the spring to move along the gap between a group of rotating plates 26, so that the spring breaks away from the rotating plate 26 and enters the carrying box 11, completing the collection work after grinding.

[0042] After the collection is completed, the operator puts in new unpolished springs again and repeats the above operation. After all the springs have been polished, the device returns to its initial position, completing the spring polishing work. The staff can then take out all the polished springs from the carrying box 11.

[0043] The above-mentioned hydraulic cylinder 15, hydraulic rod 2 16, first motor 17, electric cylinder 1 23, and second motor 28 are all existing mature technologies and will not be described in detail herein.

[0044] For example, certain words are used in the specification and claims to refer to specific components. Those skilled in the art should understand that hardware manufacturers may use different terms to refer to the same component. This specification and claims do not use differences in names as a way to distinguish components, but use differences in the functions of the components as the criteria for distinction. For example, "including" mentioned throughout the specification and claims is an open term, so it should be interpreted as "including but not limited to". "Approximately" means that within an acceptable error range, those skilled in the art can solve the technical problem within a certain error range and basically achieve the technical effect.

[0045] It should be noted that the terms "include," "comprises," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a product or system comprising a series of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such product or system. In the absence of further limitations, an element defined by the phrase "comprising a..." does not exclude the presence of other identical elements in the product or system comprising the element.

[0046] The above description shows and describes several preferred embodiments of the present application. However, as previously mentioned, it should be understood that the present application is not limited to the form disclosed herein and should not be construed as excluding other embodiments. Instead, the present application can be used in various other combinations, modifications, and environments and can be modified within the scope of the application concept described herein through the above teachings or technology or knowledge in the relevant field. Modifications and changes made by those skilled in the art that do not depart from the spirit and scope of the present application should be protected by the claims appended hereto.

Claims

1. A spring grinder, comprising a housing (10), characterized in that: A second motor (28) is fixedly connected in the housing (10), and two groups of fixed platforms (19) are symmetrically distributed and fixedly connected on the second motor (28). The surfaces of the two fixed platforms (19) of each group of the fixed platforms (19) pass through a rotating shaft (20) connected thereto, and a rotating plate (26) is fixedly connected to the surface of each rotating shaft (20). Two push covers (24) are symmetrically distributed and movably connected between the two groups of fixed platforms (19) in the housing (10), and a support rod (25) is fixedly connected to the surface of each push cover (24). A grinding mechanism is provided at the position of each support rod (25) in the housing (10).

2. A spring grinder according to claim 1, characterized in that: Two groups of turntables (22) are symmetrically distributed and fixedly connected between each group of fixed tables (19) and located between the rotating plate (26) and the working plate (18); a rotating shaft (21) is rotatably connected between each of the turntables (22); a surface of each of the rotating shafts (21) located between the turntables (22) is fixedly connected to a turntable (42); a surface of each turntable (42) located at the turntable (22) on the surface of the working plate (18) is fixedly connected to the cylinder body of an electric cylinder (23); a surface of each sliding rod (41) located at the turntable (22) on the surface of the rotating plate (26) is fixedly connected to the telescopic end of the electric cylinder (23).

3. A spring grinder according to claim 1, characterized in that The surface of the shell (10) is symmetrically distributed and fixedly connected to the cylinder bodies of two hydraulic rods (16), the telescopic end of each hydraulic rod (16) passes through and is connected to a push cover (24), the telescopic end of each hydraulic rod (16) is provided with a thread groove (39), and the inner surface of each push cover (24) is provided with a thread (40) that cooperates with the thread groove (39) at the corresponding position. The surface of the shell (10) is fixedly connected to a top plate (14), and the surface of the top plate (14) is symmetrically distributed and fixedly connected to the cylinder bodies of two hydraulic cylinders (15), the telescopic end of the hydraulic cylinder (15) passes through the top plate (14) and is fixedly connected to a limiting block (27), and the lower surface of the limiting block (27) is an arc-shaped concave.

4. A spring grinder according to claim 3, characterized in that: The surface of the top plate (14) is symmetrically provided with two avoidance grooves at the positions of the two sets of fixed platforms (19); the surface of the shell (10) is symmetrically distributed and fixedly connected to two feeding troughs (12) at the positions of the two top plate (14) avoidance grooves; the inclined surface of each feeding trough (12) points to the gap between a set of rotating plates (26) at the corresponding position; the surface of the shell (10) is symmetrically distributed and fixedly connected to two fixing blocks (13) at the positions of the two feeding troughs (12).

5. A spring grinder according to claim 2, characterized in that: The grinding mechanism includes a movable platform (37), the surface of the movable platform (37) is fixedly connected to the cylinder body of the second electric cylinder (34), the telescopic end of the second electric cylinder (34) passes through the movable platform (37) and is fixedly connected to the lifting platform (30), the surface of the lifting platform (30) is fixedly connected to the second sliding rod (41), the surface of the movable platform (37) is provided with an extension plate (33), the second sliding rod (41) passes through and is slidably connected to the extension plate (33), the surface of the lifting platform (30) is rotatably connected to the third rotating shaft (31), and the end of the third rotating shaft (31) is fixedly connected to the grinding wheel (32).

6. A spring grinder according to claim 5, characterized in that: The surface of the lifting platform (30) is fixedly connected to a second motor frame (29), the surface of the second motor frame (29) is fixedly connected to a second motor (28), the transmission end of the second motor (28) is transmission-connected to a third rotating shaft (31), and the third rotating shaft (31) is rotationally connected to the second motor frame (29).

7. A spring grinder according to claim 5, characterized in that: The surface of the housing (10) is fixedly connected with a slide rod (35), the center of the surface of the working plate (18) is fixedly connected with a fixed column (38), the slide rod (35) passes through the surface of the fixed column (38), and a lead screw (36) is symmetrically distributed and rotatably connected between the inside of the housing (10) and the fixed column (38). The surface of the housing (10) is fixedly connected with a first motor (17) at the position where each lead screw (36) is located, and the transmission end of the first motor (17) is transmission-connected with the lead screw (36). The movable platform (37) is transmission-connected to the surface of the lead screw (36) and slidably connected to the slide rod (35).

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