Spring grinding mechanism

Abstract

The utility model relates to the technical field of spring grinding, in particular to a spring grinding mechanism which is characterized in that the spring grinding mechanism comprises a protective shell, a first motor frame is fixedly connected to the surface of the protective shell, a first motor is fixedly connected to the surface of the first motor frame, and the transmission end of the first motor is in transmission connection with a first rotating shaft; the first rotating shaft is rotationally connected with the first motor frame and the protective shell, the end, away from the first motor, of the first rotating shaft is fixedly connected with a working plate, two fork blocks are symmetrically distributed and movably connected in the working plate, and a plurality of inserting grooves are evenly distributed in the surfaces of the two fork blocks. An inner supporting mechanism is movably connected to the lower portion between the two fork blocks, a spring is wrapped and clamped through staggered clamping pieces, and through the inner supporting mechanism, the position of the spring is fixed and does not deviate.

Description

Technical Field

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

[0002] Before the spring is put into production and put into use, its two ends need to be ground to make it easy to use, so a spring grinding mechanism needs to be set up. When the spring grinding mechanism is used, the existing technology is to grind one end of the spring, then remove the spring, and turn it over to grind the other side, which has a great impact on work efficiency. In addition, when grinding, the existing technology generally clamps and fixes spring structures of uniform size. It is necessary to replace the entire set of equipment to clamp and fix springs of different sizes, which incurs a huge cost for purchasing equipment. In addition, it is necessary to frequently replace equipment for springs of various models, which reduces work efficiency. Therefore, there is an urgent need for a spring grinding mechanism that can solve the above problems and improve work efficiency.

[0003] A Chinese patent with authorization announcement number CN219853621U discloses a valve stem cutting machine, which is a technical field of valve stem processing. The machine comprises a base, a first motor disposed inside the fixed seat, a fourth fixed plate disposed on one side of the first motor, a clamping plate slidably connected to the interior of the housing, a mounting plate fixedly connected to one end of the side plate, a second fixed plate disposed at one end of the mounting plate, and a grinding disc disposed at the lower end of the second fixed plate. Through the above structure, the first motor drives the first rotating shaft at one end to rotate, and the first rotating shaft drives the spring clamping structure to rotate, making it easier to grind the upper and lower surfaces of the spring. The upper end of the grinding disc is fixedly connected to the second rotating shaft, the upper end of the second rotating shaft is provided with a second motor, the upper end of the second motor is provided with a second fixed plate, one end of the second fixed plate is provided with a slide rail, and the upper end of the second fixed plate is symmetrically fixedly connected to two first electric push rod structures.

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

[0005] 1. According to the description in the above patent, the spring is clamped only by the movement of the electric push rod. However, due to the elasticity of the spring itself, the above patent does not impose any restrictions on the surrounding area of the spring, which will cause the spring to bend toward the periphery, resulting in poor grinding effect. In special cases, it may even fall out of the device, making it impossible to complete the grinding work.

[0006] 2. The above patent relies solely on an external clamp to clamp the spring. When a rotational grinding force is applied to the end, the spring itself has a spiral structure and will rotate due to friction, causing the spring to rotate downward or upward, resulting in poor grinding effect. In addition, during the grinding process, the spring may be dislocated inward, resulting in a misaligned grinding position and poor grinding effect. Utility Model Content

[0007] In order to overcome the deficiencies of the prior art, the utility model solves the technical problem of providing staggered clamping blocks to wrap around the spring so that the spring does not bend outward, causing the grinding surface to be misaligned. By applying an expanding tight holding force to the inside of the spring, the spring does not rotate, and the grinding surface is ground smoothly and stably, thereby improving the grinding effect and enhancing work efficiency.

[0008] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: a spring grinding mechanism, comprising a protective shell, a first motor frame fixedly connected to the surface of the protective shell, a first motor fixedly connected to the surface of the first motor frame, a transmission end of the first motor transmission-connected to a rotating shaft 1, the rotating shaft 1 is rotatably connected to the first motor frame, the rotating shaft 1 is rotatably connected to the protective shell, the end of the rotating shaft 1 away from the first motor is fixedly connected to a working plate, two fork blocks are symmetrically distributed and movably connected in the working plate, a plurality of slots are evenly distributed on the surfaces of the two fork blocks, a plurality of fork heads corresponding to the positions of the plurality of slots are fixedly connected on the surfaces of the two fork blocks, each fork head is perpendicular to the surface of the fork block, and each fork head can cooperate with the slot at the corresponding position on the fork block on the opposite side, and an internal support mechanism is movably connected below the two fork blocks.

[0009] Furthermore, the internal support mechanism includes a fixed plate 1, a fixed plate 1 is fixedly connected to the protective shell below the fork block, a cylinder body of a hydraulic cylinder 2 is fixedly connected to the fixed plate 1 below, a telescopic end of the hydraulic cylinder 2 is fixedly connected to a lifting block, two limiting slide bars are symmetrically distributed and fixedly connected below the lifting block, each limiting slide bar passes through and is slidably connected to the fixed plate 1, an extension ring is fixedly connected to the upper end surface of the lifting block, a limiting block 2 is rotatably connected in the extension ring, and a plurality of slide bars 2 are movably connected to the surface of the limiting block 2.

[0010] Furthermore, a third motor is fixedly connected to the lifting block below the limit block 2, and the transmission end of the third motor is connected to the rotating shaft 2. The end of the rotating shaft 2 away from the third motor is fixedly connected to the limit block 2. Four sliding grooves 4 are circumferentially distributed on the surface of the limit block 2, and each slide rod 2 is slidably connected to the slide groove 4 at the corresponding position. The surface of the slide rod 2 is fixedly connected to the limit ring, and four sliding grooves 3 are circumferentially distributed on the surface of the limit ring, and the central axis of each slide groove 3 is tangent to the axis of each slide groove 4.

[0011] Furthermore, two slide grooves 1 are circumferentially distributed on the surface of the working plate, and a slide groove 2 is provided on the surface of the working plate at a corresponding position below the slide groove 1. A moving block is slidably connected in each of the slide grooves 1, and the surface of each moving block is fixedly connected to the cylinder body of a hydraulic cylinder 1, and the telescopic end of each hydraulic cylinder 1 is fixedly connected to an extension plate, and the surface of each extension plate is fixedly connected to a fork block at a corresponding position, and the surface of each extension plate is fixedly connected to a slide rod 1, and the slide rod 1 is slidably connected in the slide groove 2 at the corresponding position.

[0012] Furthermore, two second motors are symmetrically distributed and fixedly connected to the surface of the working plate, and the transmission end of each second motor is connected to a screw. Each surface of the working plate is fixedly connected to a limiting block at the end of the screw away from the second motor, and each of the screws is rotatably connected to the working plate, and each of the screws is rotatably connected to a limiting block at a corresponding position, and each of the screw surfaces is connected to a moving block.

[0013] Furthermore, the upper end of the protective shell is fixedly connected to a fixed plate 2, and the surface of the fixed plate 2 is symmetrically distributed and fixedly connected to the cylinder bodies of two hydraulic cylinders 3, and the telescopic end of each hydraulic cylinder 3 is fixedly connected to a lifting plate, and the surface of the lifting plate is located between the two hydraulic cylinders 3 and is fixedly connected to a fourth motor, and the transmission end of the fourth motor is transmission-connected to a rotating shaft 3, and the rotating shaft 3 is rotatably connected to the lifting plate, and the lower end of the rotating shaft 3 is fixedly connected to a grinding knife.

[0014] In summary, compared with the prior art, the beneficial effects of the present invention are:

[0015] (1) Two staggered clamping blocks are used to wrap the spring. By clamping the entire spring, the grinding surface of the spring can be clamped flatly and stably under the grinding knife, so that the grinding surface is ground stably, which improves the grinding effect. The spring will not bend outward or even fall out of the device due to the lack of support force around it after being compressed, thereby improving work efficiency.

[0016] (2) A lifting block that moves along the same axis as the grinding knife is used, so that the spring is supported by the lifting block during grinding, so that the position of the spring will not be displaced, and the grinding surface is closer to the grinding knife, providing greater grinding force, making the grinding effect better. The internal support structure set inside the lifting block supports the inside of the spring, so that the spring will not be dislocated inward during grinding. The internal support and the external clamping structure work together to fix the spring between the two structures, stably clamping, so that the grinding surface is stably ground, making the grinding surface effect better and improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a three-dimensional schematic diagram of this patent.

[0018] Figure 2 This is a side view of the patent.

[0019] Figure 3 for Figure 2 Stereoscopic cross-sectional view at AA in the middle.

[0020] Figure 4 This is a half-section three-dimensional diagram of the internal support structure.

[0021] Figure 5 It is a half-section stereoscopic view of the clamping part.

[0022] Figure 6 This is a half-section stereoscopic view of the grinding part.

[0023] Figure 7 This is the exploded structural view of the support part.

[0024] Explanation of the reference numerals: protective housing 10; first motor 11; first motor frame 12; rotating shaft 13; working plate 14; slide 15; slide 2 16; screw 17; moving block 18; limit block 19; hydraulic cylinder 1 20; slide rod 1 21; extension plate 22; fork block 23; slot 24; fork head 25; second motor 26; fixed plate 1 27; hydraulic cylinder 2 28; lifting block 29; third motor 30; rotating shaft 2 31; extension ring 32; limit block 2 33; slide rod 2 34; limit ring 35; fixed plate 2 36; hydraulic cylinder 3 37; lifting plate 38; fourth motor 39; rotating shaft 3 40; grinding knife 41; slide 3 42; slide 4 43; limit slide rod 44. DETAILED DESCRIPTION

[0025] 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.

[0026] like Figure 1 、 Figure 2 and Figure 3 As shown, a spring grinding mechanism includes a protective shell 10, a first motor frame 12 is fixedly connected to the surface of the protective shell 10, a first motor 11 is fixedly connected to the surface of the first motor frame 12, a transmission end of the first motor 11 is transmission-connected to a rotating shaft 13, an end of the rotating shaft 13 away from the first motor 11 is fixedly connected to a working plate 14, a fixed plate 1 27 is fixedly connected below the working plate 14 in the protective shell 10, and a fixed plate 2 36 is fixedly connected to the upper end of the protective shell 10.

[0027] The first motor 11 drives the rotating shaft 13 to rotate, so that the rotating shaft 13 rotates the working plate 14, so that the spring does not need to be taken out when clamped, and both sides of the spring can be ground by rotating the working plate 14.

[0028] like Figure 1 、 Figure 3 and Figure 4 As shown, the cylinder body of the hydraulic cylinder 28 is fixedly connected to the bottom of the fixed plate 27, and the telescopic end surface of the hydraulic cylinder 28 protruding from the fixed plate 27 is fixedly connected to the lifting block 29. The bottom of the lifting block 29 is symmetrically distributed and fixedly connected with two limiting slides 44. A through hole is opened on the surface of the fixed plate 27 at each limiting slide 44. Each limiting slide 44 is slidably connected to the through hole on the surface of the fixed plate 27. The center of the lifting block 29 is fixedly connected to the third motor 30. The transmission end of the third motor 30 is transmission-connected to the rotating shaft 2 31. The end of the rotating shaft 2 31 away from the third motor 30 is fixedly connected to the limiting Block 2 33, the surface of the lifting block 29 is fixedly connected with an extension ring 32, the extension ring 32 is rotatably connected to the limit block 2 33, and the surface of the limit block 2 33 is provided with 4 sliding grooves 43 pointing from the center of the circle to the outer ring, and each sliding groove on the surface of the limit block 2 33 is slidably connected with a slide rod 2 34, and the upper end of the extension ring 32 is fixedly connected to the limit ring 35, and the surface of the limit ring 35 is provided with 4 sliding grooves 3 42, and the central axis of each sliding groove 3 42 is tangent to the axis of the sliding groove 4 43 at the corresponding position, and one end of each sliding rod 2 34 protruding from the limit ring 35 is slidably connected in the sliding groove 3 42 at the corresponding position.

[0029] A hydraulic cylinder 28 is provided to push the lifting block 29 to move up and down. Under the limit of the limit slide 44, the telescopic end of the hydraulic cylinder 28 can be stably lifted or lowered. The third motor 30 drives the rotating shaft 2 31 to rotate, so that the limit block 2 33 rotates, and the four slide rods 2 34 in the four slide grooves 43 on the surface of the limit block 2 33 rotate. Under the limit of the slide groove 3 42, the slide rod 2 34 slides in the slide groove 3 42 along the direction of the slide groove 4 43, so that the four slide rods 2 34 move away from each other, so that each slide rod 2 34 can resist the inner surface of the spring.

[0030] like Figure 1 、 Figure 3 、 Figure 5 and Figure 7As shown, the surface of the working plate 14 is symmetrically distributed and fixedly connected to two second motors 26, and the transmission end of each second motor 26 is transmission-connected to a lead screw 17. The surface of the working plate 14 is located at a corresponding position of each lead screw 17 and is fixedly connected to two limit blocks 19. Each lead screw 17 is rotationally connected to the working plate 14 and the limit block 19 at the corresponding position. There are two chute 15 distributed circumferentially on the surface of the working plate 14, and a chute 2 16 is provided below each chute 15. The surface of each lead screw 17 is transmission-connected to a moving block 18, and each moving block 18 is slidingly connected in the chute 15 at the corresponding position. The surface of each moving block 18 is fixedly connected There is a cylinder body of a hydraulic cylinder 20, and the telescopic end of each hydraulic cylinder 20 is fixedly connected to an extension plate 22. The surface of each extension plate 22 located below the moving block 18 is fixedly connected to a slide rod 21. Each slide rod 21 is slidably connected to a slide groove 16 at a corresponding position. A fork block 23 is fixedly connected to the surface of each extension plate 22. A slot 24 is provided on the surface of each fork block 23. The surface of each fork block 23 away from the fixed end of the extension plate 22 is fixedly connected to a fork head 25 corresponding to the position of the slot 24. Each fork head 25 is distributed perpendicular to the surface of the fork block 23, and the fork head 25 can be slidably connected to the slot 24 on the surface of the opposite fork block 23.

[0031] By setting a second motor 26 to drive the screw 17 to rotate, the moving block 18 can move along the axis direction of the screw 17, so that the hydraulic cylinder 20 can move with the moving block 18, and the fork block 23 on the surface of the extension plate 22 connected to the hydraulic cylinder 20 can move with the hydraulic cylinder 20. The extension plate 22 is pushed by the hydraulic cylinder 20, so that the fork block 23 can move along the pushing direction of the hydraulic cylinder 20, so that the two staggered fork blocks 23 can cooperate with each other to provide wrapping support for the clamped springs of different diameters.

[0032] like Figure 1 、 Figure 3 and Figure 6 As shown, the surface of the fixed plate 2 36 is symmetrically distributed and fixedly connected to the cylinder bodies of two hydraulic cylinders 37, the telescopic end of each hydraulic cylinder 37 is fixedly connected to the lifting plate 38, and the surface of the lifting plate 38 is located between the telescopic ends of the two hydraulic cylinders 37 and is fixedly connected to the fourth motor 39. The transmission end of the fourth motor 39 is transmission-connected to the rotating shaft 3 40, and the rotating shaft 3 40 is rotatably connected to the lifting plate 38. The lower end of the rotating shaft 30 is fixedly connected to the grinding knife 41.

[0033] The lifting plate 38 is pushed downward by the hydraulic cylinder 37, so that the fourth motor 39 on the lifting plate 38 moves downward, and the fourth motor 39 drives the rotating shaft 3 40 to rotate, so that the grinding knife 41 rotates at high speed, so that the downward-moving grinding knife 41 presses the grinding surface clamped by the spring, and the grinding knife 41 rotates at high speed to grind the grinding surface.

[0034] In this embodiment, initially, the operator connects the device to a power source and connects each hydraulic cylinder body to a hydraulic supply device. At this time, the two hydraulic cylinders three 37 are in a fully tightened state, the two moving blocks 18 are at the farthest ends away from each other, the two hydraulic cylinders one 20 are in a fully tightened state, the hydraulic cylinder two 28 is in a fully retracted state, and each slide rod two 34 is at one end of each corresponding position slide groove four 43 close to the center of the circle.

[0035] Before use, the operator places the spring sleeve on the surface of the four slide rods 2 34 on the surface of the limit ring 35, turns on the third motor 30 to drive the rotating shaft 2 31 to rotate, so that the limit block 2 33 connected to the rotating shaft 2 31 rotates, and the four slide rods 2 34 in the four slide grooves 43 opened on the surface of the limit block 2 33 move in a circle with the limit block 2 33. Since the slide rod 2 34 protrudes from the limit ring 35 and slides in the slide groove 32, the slide groove 32 limits the movement direction of the slide rod 2 34, so that the slide rod 2 34 slides along the slide groove 43 toward the outer circle, and the four slide rods 2 34 move away from each other, which supports the springs sleeved outside the four slide rods 2 34.

[0036] At the same time, the hydraulic cylinder 28 is driven to push the lifting block 29 to lift, so that the spring clamped by the four slide bars 2 34 is lifted to between the two fork blocks 23. At this time, the two second motors 26 are turned on to drive the corresponding screws 17 to rotate, so that the moving blocks 18 on the surfaces of the two screws 17 move, so that the two moving blocks 18 approach each other, so that the hydraulic cylinder 1 20 connected to the surface of each moving block 18 moves, so that the extension plate 22 at the telescopic end of the hydraulic cylinder 1 20 moves, so that the fork block 23 on the surface of the extension plate 22 moves, so that the two fork blocks 2 3 move closer to each other along the axis of the lead screw 17, so that the slots 24 on the surface of the fork block 23 engage with the fork head 25 on the opposite fork block 23, driving the two hydraulic cylinders 120 to push the extension plate 22. Under the constraints of the two slide bars 121, each extension plate 22 moves smoothly along the axis of the corresponding slide bar 21. The two fork heads 25 slide in the corresponding slots 24 along the axial direction of the slide bar 21, bringing the two fork heads 25 closer to each other, allowing the two fork blocks 23 to clamp the outer surface of the wrapped support spring.

[0037] When the inner and outer surfaces of the spring are clamped by the slide bar 23 and the fork block 23, the two hydraulic cylinders 37 are driven to push the lifting plate 38 downward, so that the fourth motor 39 on the surface of the lifting plate 38 moves downward, and the rotating shaft 3 40 connected to the fourth motor 39 moves downward, so that the grinding knife 41 at the lower end of the rotating shaft 3 40 contacts the grinding surface of the spring, and the fourth motor 39 is turned on to drive the rotating shaft 3 40 to rotate, so that the grinding knife 41 rotates at high speed, producing a grinding effect on the grinding surface of the spring. Due to the clamping of the fork block 23 and the slide bar 234, the spring will not be deformed due to the deflection force generated by the rotation of the grinding knife 41, so that the grinding surface is ground stably, and the grinding effect is good.

[0038] After one end of the spring is ground, the hydraulic cylinder 3 37 contracts, driving the lifting plate 38 to rise, so that the grinding knife 41 is separated from the grinding surface of the spring. At this time, the third motor 30 is turned on to drive the rotating shaft 2 31 to reverse, so that the four slide bars 2 34 are moved closer to each other and contracted, driving the hydraulic cylinder 2 28 to contract, so that the slide bar 2 34 moves downward, so that the spring is only supported by the fork block 23. At this time, the lifting plate 38 and the lifting block 29 avoid the space for the working plate 14 to rotate, and the first motor 11 is turned on to drive the rotating shaft 1 13 to rotate, so that the rotating shaft 13 drives the working plate 14 to rotate, so that the end of the spring that has not been ground faces upward.

[0039] When the working plate 14 completes its rotation, the hydraulic cylinder 28 pushes the lifting block 29 to lift, so that the slide bar 2 34 is between the fork blocks 23, and the third motor 30 is turned on to drive the rotating shaft 2 31 to rotate, so that the slide bars 2 34 move away from each other and expand, so that the slide bars 2 34 generate a supporting force on the inside of the spring.

[0040] At this time, the hydraulic cylinder 3 37 pushes the lifting plate 38 downward, so that the grinding knife 41 contacts the new grinding surface of the spring, completing the grinding operation.

[0041] After completing the grinding of a single spring, each second motor 26 drives the screw 17 to reverse, so that the fork blocks 23 move away from each other, and the two hydraulic cylinders 1 20 contract, so that the fork heads 25 on the surfaces of the two fork blocks 23 move away from each other, and the clamping force on the outer surface of the spring disappears. At this time, the hydraulic cylinder 2 28 contracts, so that the lifting block 29 descends, and the third motor 30 drives the rotating shaft 2 31 to reverse, so that the four slide bars 2 34 approach each other, and the spring loses its internal supporting force, so that the ground spring can be removed. The operator removes the spring and places a new spring to be ground, and repeats the above grinding process.

[0042] After all springs have been ground, the operator removes the last ground spring and the device returns to its initial state.

[0043] The first motor 11, hydraulic cylinder 1 20, second motor 26, hydraulic cylinder 2 28, third motor 30, hydraulic cylinder 3 37, fourth motor 39, and grinding knife 41 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 grinding mechanism, comprising a protective housing (10), characterized in that: The surface of the protective housing (10) is fixedly connected to a first motor frame (12), the surface of the first motor frame (12) is fixedly connected to a first motor (11), the transmission end of the first motor (11) is transmission-connected to a rotating shaft (13), the rotating shaft (13) is rotationally connected to the first motor frame (12), the rotating shaft (13) is rotationally connected to the protective housing (10), the end of the rotating shaft (13) away from the first motor (11) is fixedly connected to a working plate (14), the working plate (14) Two fork blocks (23) are symmetrically distributed and movably connected internally, a plurality of slots (24) are evenly distributed on the surfaces of the two fork blocks (23), a plurality of fork heads (25) corresponding to the positions of the plurality of slots (24) are fixedly connected to the surfaces of the two fork blocks (23), each fork head (25) is perpendicular to the surface of the fork block (23), and each fork head (25) can cooperate with the slot (24) at the corresponding position on the fork block (23) on the opposite side, and an internal support mechanism is movably connected below the two fork blocks (23).

2. A spring grinding mechanism according to claim 1, characterized in that: The inner support mechanism includes a fixed plate (27), a fixed plate (27) is fixedly connected to the protective shell (10) below the fork block (23), a cylinder body of a hydraulic cylinder (28) is fixedly connected below the fixed plate (27), a telescopic end of the hydraulic cylinder (28) is fixedly connected to a lifting block (29), two limit slides (44) are symmetrically distributed and fixedly connected below the lifting block (29), each of the limit slides (44) passes through and is slidably connected to the fixed plate (27), an extension ring (32) is fixedly connected to the upper end surface of the lifting block (29), a limit block (33) is rotatably connected inside the extension ring (32), and a plurality of slides (34) are movably connected to the surface of the limit block (33).

3. A spring grinding mechanism according to claim 2, characterized in that The lifting block (29) is fixedly connected to a third motor (30) below the limit block 2 (33), and the transmission end of the third motor (30) is connected to a rotating shaft 2 (31). The end of the rotating shaft 2 (31) away from the third motor (30) is fixedly connected to the limit block 2 (33). The surface of the limit block 2 (33) is provided with four chute 4 (43) distributed circumferentially. Each slide rod 2 (34) is slidably connected to the chute 4 (43) at the corresponding position. The surface of the slide rod 2 (34) is fixedly connected to the limit ring (35). The surface of the limit ring (35) is circumferentially distributed with four chute 3 (42). The central axis of each chute 3 (42) is tangent to the axis of each chute 4 (43).

4. A spring grinding mechanism according to claim 1, characterized in that: Two slide grooves (15) are provided on the circumference of the surface of the working plate (14), and a slide groove (16) is provided on the surface of the working plate (14) at a corresponding position below the slide groove (15). A moving block (18) is slidably connected in each of the slide grooves (15), and a cylinder body of a hydraulic cylinder (20) is fixedly connected to the surface of each of the moving blocks (18). An extension plate (22) is fixedly connected to the telescopic end of each of the hydraulic cylinders (20), and a fork block (23) at a corresponding position is fixedly connected to the surface of each of the extension plates (22). A slide rod (21) is fixedly connected to the surface of each of the extension plates (22), and the slide rod (21) is slidably connected in the slide groove (16) at the corresponding position.

5. A spring grinding mechanism according to claim 4, characterized in that: Two second motors (26) are symmetrically distributed and fixedly connected on the surface of the working plate (14), and the transmission end of each second motor (26) is transmission-connected to a lead screw (17). A limiting block (19) is fixedly connected to the surface of each working plate (14) at one end of the lead screw (17) away from the second motor (26). Each lead screw (17) is rotationally connected to the working plate (14), and each lead screw (17) is rotationally connected to a limiting block (19) at a corresponding position. A moving block (18) is transmission-connected to the surface of each lead screw (17).

6. A spring grinding mechanism according to claim 1, characterized in that: The upper end of the protective shell (10) is fixedly connected to a fixing plate 2 (36), and the surface of the fixing plate 2 (36) is symmetrically distributed and fixedly connected to the cylinder bodies of two hydraulic cylinders 3 (37), and the telescopic end of each hydraulic cylinder 3 (37) is fixedly connected to a lifting plate (38), and the surface of the lifting plate (38) is located between the two hydraulic cylinders 3 (37) and is fixedly connected to a fourth motor (39), and the transmission end of the fourth motor (39) is transmission-connected to a rotating shaft 3 (40), and the rotating shaft 3 (40) is rotatably connected to the lifting plate (38), and the lower end of the rotating shaft 3 (40) is fixedly connected to a grinding knife (41).

Images