End burr treatment mechanism for spring processing

Abstract

The present invention relates to the technical field of spring processing equipment, and discloses an end burr processing mechanism for spring processing, comprising a base plate, a first movable plate and a second movable plate are slidably connected on both sides of the base plate, a first grinding wheel plate is fixedly installed on the top of the first movable plate, a second grinding wheel plate is fixedly connected on the top of the second movable plate, an axis plate is arranged in the middle of the first grinding wheel plate and the second grinding wheel plate, a fine grinding wheel is arranged on one side of the first grinding wheel plate, and the end burr processing mechanism for spring processing, friction is performed between the fine grinding wheel and the fixed grinding wheel, the rotating grinding wheel and the driving grinding wheel, wherein the inner ring of the spring and the outer ring of the mounting tube are fitted, the end of the spring and the outer ring of the mounting tube are in wide contact, the outer ring of the mounting tube limit the end of the spring, and can effectively prevent the end of the spring from being deflected after being rubbed during the movement of the mounting tube.

Description

Technical Field

[0001] The invention relates to the technical field of spring processing equipment, in particular to an end burr processing mechanism for spring processing. Background Art

[0002] A spring is a mechanical part that works by using elasticity. Parts made of elastic materials deform under external force and return to their original shape after the external force is removed. It is also called "spring". It is generally made of spring steel. There are many types of springs. According to their shapes, they mainly include helical springs, scroll springs, leaf springs, special-shaped springs, etc.

[0003] During the spring production process, the spring ends have burrs when they are cut, and they need to be ground flat to facilitate installation on certain equipment. The existing spring end burr grinding mechanism is to install the spring into a rotating wheel, and a plurality of clamping mechanisms are arranged on the rotating wheel, and a grinding wheel mechanism is fixedly arranged on both sides of the rotating wheel, and a grinding wheel is arranged on the grinding wheel mechanism. Each clamping mechanism is composed of two clamping plates, and the spring is clamped by manually rotating the threaded rod on one of the clamping plates to push the other clamping plate to move. The two ends of the spring extend out of the clamping mechanism, and the ends are fitted with the grinding wheel mechanism. Then, the rotating wheel is driven to rotate so that the spring ends contact with the rotating grinding wheel during the rotation process, and the spring ends are ground flat. When multiple springs are ground at one time, the elastic coefficients of various types of springs are different during the grinding process, resulting in different deformation quantities. According to the characteristics of the spring, the end of the spring will swing and bend during the grinding process, changing the grinding position and damaging the end of the spring. At the same time, the end adopts an extrusion grinding method, and when the spring contacts the grinding wheel mechanism, it will deform and jump out of the spring fixed structure, resulting in inconsistent grinding accuracy of the same batch of springs. For this reason, we propose an end burr processing mechanism for spring processing. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides an end burr processing mechanism for spring processing, which solves the problems mentioned in the above background.

[0005] The present invention provides the following technical solution: an end burr processing mechanism for spring processing, comprising a base plate, wherein the first movable plate and the second movable plate are slidably connected on both sides of the base plate, a first grinding wheel plate is fixedly installed on the top of the first movable plate, and a second grinding wheel plate is fixedly connected on the top of the second movable plate, an axis plate is arranged in the middle of the first grinding wheel plate and the second grinding wheel plate, a fine grinding wheel is arranged on one side of the first grinding wheel plate, and a plurality of second fixed buckle strips are equidistantly arranged on the other side of the first grinding wheel plate, and one end of the plurality of second fixed buckle strips is fixed to the axis plate, a driving grinding wheel is rotatably connected to one of the axis plates, a fixed grinding wheel is fixedly installed inside the second grinding wheel plate, and the other axis plate rotates A rotating grinding wheel is connected, and a plurality of first fixed buckle strips are fixedly connected to one side of the second grinding wheel plate, and the first fixed buckle strip is fixedly connected to one of the shaft plates, and a plurality of external rotating rods are rotatably connected between the rotating grinding wheel and the fixed grinding wheel, and the outer ring of each external rotating rod is detachably connected to a mounting tube, and one end of the external rotating rod is located between the fine grinding wheel and the driving grinding wheel, and a meshing gear is fixedly installed on the other end of the plurality of external rotating rods, and a first motor is fixedly arranged on one side of the second movable plate, and a speed matching gear is sleeved on the output shaft of the first motor, and the speed matching gear and the meshing gear are meshed for transmission, and first hydraulic rods are fixedly installed on the back sides of the two shaft plates, and the two first hydraulic rods are respectively fixed to the bottom plate.

[0006] Preferably, the opposite surfaces between the shaft plate and the driving grinding wheel are fixedly connected with key connecting cylinders, the two key connecting cylinders are connected together by mortise and tenon joints, an outer ring gear is fixedly installed on one side of the fine grinding wheel, an inner ring gear is fixedly installed on one side of the driving grinding wheel, a second motor is fixedly installed on each of the second fixed buckle strips, a driving gear is sleeved on the output shaft of each of the second motors, and the driving gear is meshed between the inner ring gear and the outer ring gear.

[0007] Preferably, the outer ring of each external rotating rod is fixedly connected to the internal rotating rod, and the outer rings at both ends of the internal rotating rod are provided with at least three or more second magnets, and the inner rings at both ends of the mounting tube are provided with multiple first magnets next to each second magnet, and the first magnet and the second magnet have opposite poles and are attracted together.

[0008] Preferably, limit rods are fixedly installed on the inner rings at both ends of the mounting tube, and each of the limit rods is slidably connected with a movable block, and the external rotating rod is provided with a threaded section near each internal rotating rod, and the movable block is slidably connected to the external rotating rod through the threaded section, and a second wedge block is movably connected at both ends of the mounting tube, and an internal spring is fixedly connected to one side of the second wedge block, and a first wedge block is fixedly connected to one end of the internal spring, one side of the first wedge block is coincident with one side of the movable block, and the other side of the second wedge block extends out of the mounting tube, and the other two sides of the second wedge block are arranged to contact the end of the spring during inclined processing.

[0009] Preferably, the outer ring of the external rotating rod is rotatably connected to an externally threaded rotating disk near one end of the mounting tube, and an internally threaded rotating ring is movably connected to the externally threaded rotating disk. The internally threaded rotating ring is fixedly connected to a plurality of support bars on the side facing the mounting tube, and each of the support bars is provided with a plurality of recessed areas at equal intervals. When the externally threaded rotating disk rotates, the internally threaded rotating ring drives the support bars to move radially along the outer ring of the mounting tube and resist against the inner ring of the spring.

[0010] Preferably, each of the external rotating rods is slidably connected to a slide rod at one end facing the second grinding wheel plate, a counterweight ball is fixedly installed at one end of each slide rod, and the other end of the slide rod is detachably connected to a limit cover.

[0011] Preferably, a fixing plate is fixedly installed on the opposite surface between the first grinding wheel plate and the second grinding wheel plate, a second hydraulic rod is fixedly connected to the bottom of the fixing plate, a check plate is fixedly installed on the bottom of each movable rod of the second hydraulic rod, a connecting strip is fixedly installed on one of the movable rods of the second hydraulic rod, and the connecting strip and the movable trajectory of the limit cover interfere with each other.

[0012] Preferably, both sides of the bottom plate are rotatably connected with rotating rods, each of the rotating rods is provided with a thread in the middle, a center plate is rotatably connected between the middles of the two rotating rods, a resistance plate is rotatably connected to the top of the center plate, each of the mounting tubes passes through the resistance plate, and one end of the two mounting tubes is transmission-connected with a pulley.

[0013] Preferably, the outer ring of the support bar is anti-slip treated, and the support bar is made of soft rubber. The major diameter and minor diameter of the fine grinding wheel and the fixed grinding wheel are equal, and the contact plate is made of heat-conducting material.

[0014] Preferably, the length of the thread provided on the middle portion of each rotating rod does not exceed the distance between the two second hydraulic rods.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. When the meshing gear of the present invention rotates, it drives multiple external rotating rods located between the shaft plate and the second grinding wheel plate to rotate, thereby causing multiple mounting tubes to rotate. When the spring ends mounted on the mounting tubes rotate, they rub against the fine grinding wheel, the fixed grinding wheel, the rotating grinding wheel and the driving grinding wheel, wherein the inner ring of the spring and the outer ring of the mounting tube are fitted, and the spring ends are in wide contact with the outer ring of the mounting tube end. The outer ring of the mounting tube end limits the spring ends, and during the movement of the mounting tube, the spring ends can be effectively prevented from being deflected after being rubbed, thereby allowing the spring ends to be effectively contacted, rubbed and polished with multiple grinding wheels, thereby preventing the spring ends from being deflected during the grinding process and damaging the springs;

[0017] 2. During the movement of the movable block of the present invention, the bottom of the movable block gradually contacts the first wedge block. After the first wedge block contacts the movable block, it moves radially along the mounting tube and extends out. The built-in spring begins to compress, and the second wedge block is synchronously driven to extend out of the mounting tube until one side of the second wedge block abuts against one side of the spring end ring, and the other side abuts against one side of the spring leaf. In the process of processing the spring, one side of the end ring is elastically stretched open by force. Under the interference of the second wedge block, one side of the end ring and the second wedge block form a contact point, forming a pair of opposite forces, thereby preventing circumferential rotation on the mounting tube, accurately defining the processing area of ​​the spring end, and improving the friction quality.

[0018] 3. During the rotation of the pulley, the center plate moves in the middle of the rotating rod, and the spring is installed on the tube. One end of the spring contacts the contact plate, and the other end faces the first grinding wheel plate or the second grinding wheel plate. After one end of the spring is polished, the spring can be disassembled, and the other end of the spring can be replaced and polished in the same direction, which is convenient for processing springs of different types and improves the scalability of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 It is a schematic structural diagram of the first grinding wheel plate and the second grinding wheel plate of the present invention;

[0021] Figure 3 It is a schematic diagram of the structure of the fine grinding wheel and the driving grinding wheel of the present invention;

[0022] Figure 4 This is a schematic diagram of the structure of Embodiment 3 of the present invention;

[0023] Figure 5 This is a schematic diagram of the structure of the external rotating rod, the mounting tube and the supporting bar of the present invention;

[0024] Figure 6 This is a schematic diagram of the structure of the external threaded rotating disk, the internal threaded rotating ring and the supporting bar of the present invention;

[0025] Figure 7 This is a schematic diagram of the internal structure of the installation tube of the present invention;

[0026] Figure 8 For the present invention Figure 7 A schematic diagram of the enlarged structure at A in the middle;

[0027] Fig. 9 It is a schematic diagram of the overall structure of the present invention from another perspective.

[0028] In the figure: 1, bottom plate; 2, pulley; 3, rotating rod; 4, middle plate; 5, first movable plate; 6, second movable plate; 7, first hydraulic rod; 8, first grinding wheel plate; 9, second grinding wheel plate; 901, first fixed buckle strip; 10, second fixed buckle strip; 11, contact plate; 12, fixed plate; 13, mounting tube; 14, key cylinder; 15, rotating grinding wheel; 16, fixed grinding wheel; 17, inner ring gear; 18, outer ring gear; 19, fine grinding wheel; 20, driving grinding wheel; 21, support bar; 2101, recessed area; 22, external rotating rod; 23, sliding rod; 24, counterweight ball; 25, external threaded turntable; 26, internal threaded swivel; 27, internal rotating rod; 28, first magnet; 29, second magnet; 30, movable block; 31, limit rod; 32, threaded section; 33, first wedge block; 34, internal spring; 35, second wedge block; 36, second hydraulic rod; 37, check plate; 38, connecting strip; 39, first motor; 40, speed matching gear; 41, meshing gear; 42, second motor. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] Example 1: Please refer to Figure 1-9, a burr processing mechanism for end of spring processing, comprising a bottom plate 1, a first movable plate 5 and a second movable plate 6 are slidably connected on both sides of the bottom plate 1, a first grinding wheel plate 8 is fixedly installed on the top of the first movable plate 5, a second grinding wheel plate 9 is fixedly connected on the top of the second movable plate 6, an axis plate is arranged in the middle of the first grinding wheel plate 8 and the second grinding wheel plate 9, a fine grinding wheel 19 is arranged on one side of the first grinding wheel plate 8, a plurality of second fixed buckle strips 10 are equidistantly arranged on the other side of the first grinding wheel plate 8, one end of each of the plurality of second fixed buckle strips 10 is fixed to the axis plate, a driving grinding wheel 20 is rotatably connected to one of the axis plates, a fixed grinding wheel 16 is fixedly installed inside the second grinding wheel plate 9, and a rotating grinding wheel 15 is rotatably connected to the other axis plate. A plurality of first fixed buckle strips 901 are fixedly connected to one side of the grinding wheel plate 9, and the first fixed buckle strips 901 are fixedly connected to one of the shaft plates. A plurality of external rotating rods 22 are rotatably connected between the rotating grinding wheel 15 and the fixed grinding wheel 16, and the outer ring of each external rotating rod 22 is detachably connected to a mounting tube 13, and one end of the external rotating rod 22 is located between the fine grinding wheel 19 and the driving grinding wheel 20, and a meshing gear 41 is fixedly installed on the other end of the plurality of external rotating rods 22, and a first motor 39 is fixedly provided on one side of the second movable plate 6, and a speed matching gear 40 is sleeved on the output shaft of the first motor 39, and the speed matching gear 40 and the meshing gear 41 are meshed for transmission, and first hydraulic rods 7 are fixedly installed on the opposite back sides of the two shaft plates, and the two first hydraulic rods 7 are respectively fixed to the bottom plate 1;

[0031] In one embodiment, the shaft plate located in the middle of the first grinding wheel plate 8 and the second grinding wheel plate 9 is fixed by the second fixed buckle strip 10 and the first fixed buckle strip 901 respectively, the first grinding wheel plate 8 and the fine grinding wheel 19 are fixedly connected, the rotating grinding wheel 15 located on the second grinding wheel plate 9 is fixedly set, and the fixed grinding wheel 16 is fixed inside the second grinding wheel plate 9. When the spring is processed and ground, the background first drives the movable rod of the first hydraulic rod 7 to retract to the limit position, and the first movable plate 5 and the second movable plate 6 slide along the bottom plate 1, so that one end of the external rotating rod 22 is separated from the first grinding wheel plate 8, and the other end of the external rotating rod 22 is located between the shaft plate and the second grinding wheel plate 9, and the meshing gear 41 is lifted and supported, so that multiple external rotating rods 22 can be subjected to force without axial movement, and then multiple springs are manually installed on each mounting tube 13, and then the movable rod of the first hydraulic rod 7 is extended forward, so that the two ends of the spring are respectively in contact with the fine grinding wheel 19 and the fixed grinding wheel 16 The first motor 39 is started to rotate in the background, and when the first motor 39 rotates, it drives the matching gear 40 to rotate, and the matching gear 40 rotates to drive the meshing gear 41 to rotate. When the meshing gear 41 rotates, it drives multiple external rotating rods 22 located between the shaft plate and the second grinding wheel plate 9 to rotate, thereby causing multiple mounting tubes 13 to rotate. When the spring end mounted on the mounting tube 13 rotates, it rubs against the fine grinding wheel 19, the fixed grinding wheel 16, the rotating grinding wheel 15 and the driving grinding wheel 20, so that the length of the spring after grinding is equal to that of the mounting tube 13, and the first motor 39 can be turned off for output, wherein the inner ring of the spring and the outer ring of the mounting tube 13 are fitted, and the end of the spring and the outer ring of the end of the mounting tube 13 are in large contact, and the outer ring of the end of the mounting tube 13 limits the end of the spring, and in the process of moving the mounting tube 13, the end of the spring can be effectively prevented from being offset after being rubbed, thereby improving the grinding quality of the spring.

[0032] Further, in another embodiment, the opposite surfaces of the shaft plate and the driving grinding wheel 20 are fixedly connected with a key connecting cylinder 14, and the two key connecting cylinders 14 are connected together with mortise and tenon joints, an outer ring gear 18 is fixedly installed on one side of the fine grinding wheel 19, and an inner ring gear 17 is fixedly installed on one side of the driving grinding wheel 20. A second motor 42 is fixedly installed on each of the second fixed buckle strips 10, and a driving gear is sleeved on the output shaft of each of the second motors 42. The driving gear is meshed between the inner ring gear 17 and the outer ring gear 18. In this embodiment, the fine grinding wheel 19 and the driving grinding wheel 20 can rotate. When the spring is installed on the mounting tube 13, the first hydraulic rod 7 extends so that multiple external The rotating rod 22 is located between the first grinding wheel plate 8 and the second grinding wheel plate 9, and then drives the second motor 42 and the first motor 39 to rotate at the same time. The second motor 42 and the first motor 39 rotate in opposite directions. The driving gear on the second motor 42 rotates to drive the inner ring gear 17 and the outer ring gear 18 to rotate. The inner ring gear 17 and the outer ring gear 18 rotate in opposite directions. When the driving grinding wheel 20 rotates, it drives the key cylinder 14 to rotate, so that the rotating grinding wheel 15 rotates. The driving grinding wheel 20 and the rotating grinding wheel 15 and the external rotating rod 22 rotate in opposite directions, so that the spring end can contact the surfaces of the driving grinding wheel 20 and the rotating grinding wheel 15 more quickly, thereby reducing the processing time of the spring end.

[0033] Embodiment 2: The outer ring of each of the external rotating rods 22 is fixedly connected to the internal rotating rod 27, and at least three or more second magnets 29 are arranged on the outer rings at both ends of the internal rotating rod 27. A plurality of first magnets 28 are arranged on the inner rings at both ends of the mounting tube 13 next to each second magnet 29, and the first magnet 28 and the second magnet 29 have opposite magnetic poles and are attracted together; the inner rings at both ends of the mounting tube 13 are fixedly installed with limit rods 31, and each of the limit rods 31 is slidably connected with a movable block 30, and the external rotating rod 22 is provided with a threaded section 32 near each internal rotating rod 27, and the movable block 30 is slidably connected to the external rotating rod 22 through the threaded section 32, and the mounting tube 13 The two ends are movably connected with a second wedge block 35, one side of the second wedge block 35 is fixedly connected with an internal spring 34, one end of the internal spring 34 is fixedly connected with a first wedge block 33, one side of the first wedge block 33 coincides with one side of the movable block 30, the other side of the second wedge block 35 extends out of the mounting tube 13, and the other two sides of the second wedge block 35 are set to contact the spring end during the inclined processing, the external rotating rod 22 is fixed to the mounting tube 13 by the soft attraction of the second magnet 29 and the first magnet 28, the internal rotating rod 27 is pulled out along the axial direction of the mounting tube 13 through the external rotating rod 22, when the spring is installed on the mounting tube 13, in order to prevent the spring end from appearing on the outer ring of the mounting tube 13 The spring is generally grinded at both ends, and the thread pitch near the two ends is smaller than the thread pitch in other areas, and the spring is closed. Therefore, after the spring is installed, one end of the external rotating rod 22 is rotated to separate a pair of corresponding first magnets 28 and second magnets 29, and the first magnets 28 and the second magnets 29 rotate and attract each other, so that the internal rotating rod 27 rotates, and the rotation of the internal rotating rod 27 drives the threaded section 32 to rotate. Under the action of the limiting rod 31, the movable block 30 moves linearly along the threaded section 32 toward the end of the mounting tube 13. When the movable block 30 moves, the bottom of the movable block 30 gradually moves. The second wedge block 35 is in contact with the first wedge block 33. After the first wedge block 33 contacts the movable block 30, it moves radially along the mounting tube 13 and extends out. The built-in spring 34 begins to compress, and synchronously drives the second wedge block 35 to extend out of the mounting tube 13. The two sides of the second wedge block 35 pass through the end gap of the processed spring until one side of the second wedge block 35 abuts against one side of the spring end ring, and the other side abuts against one side of the spring leaf, so that during the processing of the spring, one side of the end ring is elastically stretched open by force. Due to the interference of the second wedge block 35, a contact point is formed between one side of the end ring and the second wedge block 35, forming a pair of opposite forces, thereby preventing circumferential rotation on the mounting tube 13, accurately defining the processing area of ​​the spring end, and improving the friction quality.

[0034] Furthermore, the outer ring of the external rotating rod 22 is rotatably connected to an external threaded rotating disk 25 near one end of the mounting tube 13, and an internal threaded rotating ring 26 is movably connected to the external threaded rotating disk 25. The internal threaded rotating ring 26 is fixedly connected to a plurality of support bars 21 on the side facing the mounting tube 13, and each of the support bars 21 is evenly spaced and provided with a plurality of recessed areas 2101. When the external threaded rotating disk 25 rotates, the internal threaded rotating ring 26 drives the support bars 21 to move radially along the outer ring of the mounting tube 13 and to counteract the inner ring of the spring. In order to ensure that the spring leaf does not move on the outer ring of the mounting tube 13, causing the spring leaf to shake, The spring is forced to move, forcing the end to resonate during processing, and the end is damaged during friction. After the spring is installed on the mounting tube 13, the external thread turntable 25 is manually rotated to make the internal thread turntable 26 close to one end of the mounting tube 13, and at the same time, multiple support bars 21 are driven to move on the mounting tube 13. The top of the support bar 21 is a valley peak. During the movement of the edge of the support bar 21, it is against the inner circle of the spring leaf, and the middle section of the spring is driven to be stable. At the same time, the support bar 21 can match springs of different diameters when moving, which is convenient for processing springs of different types and improves the ductility of the equipment.

[0035] Specifically, each of the external rotating rods 22 is slidably connected to a slide rod 23 at one end facing the second grinding wheel plate 9, and a counterweight ball 24 is fixedly installed at one end of each of the slide rods 23. The other end of the slide rod 23 is detachably connected to a limited position cover. Since the two ends of the external rotating rod 22 are respectively located between the first grinding wheel plate 8 and the second grinding wheel plate 9, when the spring end is grinding, some areas are bound to be missed. During the rotation of the meshing gear 41, the slide rod 23 can be driven to rotate the external rotating rod 22 under the action of the counterweight ball 24, so as to Fig. 9 As shown, when the counterweight ball 24 is located at the 3 o'clock-6 o'clock position, the counterweight ball 24 drives the slide bar 23 to move downward at the end of the external rotating rod 22 due to its own weight, so that the external rotating rod 22 is forced to rotate. At the same time, the external rotating rod 22 is attracted by the first magnet 28 and multiple second magnets 29, and synchronously drives the mounting tube 13 to rotate. The rotation of the mounting tube 13 drives the spring thereon to rotate, so as to facilitate the processing of different areas of the end.

[0036] Specifically, a fixed plate 12 is fixedly installed on the opposite surface between the first grinding wheel plate 8 and the second grinding wheel plate 9, and a second hydraulic rod 36 is fixedly connected to the bottom of the fixed plate 12. A check plate 37 is fixedly installed at the bottom of each movable rod of the second hydraulic rod 36. A connecting strip 38 is fixedly installed on one of the movable rods of the second hydraulic rod 36. The connecting strip 38 and the movable trajectory of the limit cover interfere with each other. When it is necessary to separate the first magnet 28 and the plurality of second magnets 29, the two movable rods of the second hydraulic rods 36 can be synchronously driven to descend in the background. After the movable rods of the second hydraulic rods 36 are descended, The check plate 37 passes over the spring and abuts against the mounting tube 13, driving the first motor 39 to rotate and then driving the multiple external rotating rods 22 to rotate, the connecting bar 38 and the limit cover abut against each other, and at the same time the support bar 21 and the check plate 37 abut against each other, so that the first magnet 28 and the multiple second magnets 29 are separated, wherein the rotation direction of the meshing gear 41 is consistent with the locking direction of the internal threaded rotating ring 26, to prevent the check plate 37 and the support bar 21 from abutting against each other, so that the internal threaded rotating ring 26 reversely drives the external threaded turntable 25 to rotate, and the contact position between the support bar 21 and the inner ring of the spring is changed, thereby reducing the supporting effect of the support bar 21.

[0037] Embodiment 3: Furthermore, both sides of the bottom plate 1 are rotatably connected with rotating rods 3, and the middle part of each rotating rod 3 is provided with a thread, and a center plate 4 is rotatably connected between the middle parts of the two rotating rods 3, and a resistance plate 11 is rotatably connected to the top of the center plate 4, and each of the mounting tubes 13 passes through the resistance plate 11, and one end of the two mounting tubes 13 is transmission-connected with a pulley 2. In this embodiment, spring models of different lengths and sizes can be installed on the mounting tube 13. During the rotation of the pulley 2, the center plate 4 moves in the middle part of the rotating rod 3, and the spring is mounted on the spring mounting tube 13, one end of the spring is in resistance against the resistance plate 11, and the other end faces the first grinding wheel plate 8 or the second grinding wheel plate 9, and the pulley 2 continues to rotate to adjust the distance of the resistance plate 11. After one end of the spring is polished, the spring can be disassembled, and the other end of the spring can be replaced in direction and polished, thereby improving the processing range of the equipment.

[0038] The outer ring of the support bar 21 is anti-slip treated, and the support bar 21 is made of soft rubber. The fine grinding wheel 19 and the fixed grinding wheel 16 have equal major and minor diameters. The contact plate 11 is made of heat-conducting material. The contact plate 11 is beneficial for dissipating the heat of the spring during processing and shortening the time for replacing the other end of the spring. The middle part of each rotating rod 3 is provided with a thread whose length does not exceed the distance between the two second hydraulic rods 36 to prevent the contact plate 11 and the second hydraulic rod 36 from interfering.

[0039] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A spring end burr treatment mechanism, characterized in that: The invention comprises a bottom plate (1), wherein a first movable plate (5) and a second movable plate (6) are slidably connected to the two sides of the bottom plate (1), a first grinding wheel plate (8) is fixedly mounted on the top of the first movable plate (5), a second grinding wheel plate (9) is fixedly connected to the top of the second movable plate (6), and shaft plates are arranged in the middle of the first grinding wheel plate (8) and the second grinding wheel plate (9); A fine grinding wheel (19) is arranged on one side of the first grinding wheel plate (8), and a plurality of second fixed buckle strips (10) are equidistantly arranged on the other side of the first grinding wheel plate (8), one end of each of the plurality of second fixed buckle strips (10) is fixed to the shaft plate, one of the shaft plates is rotatably connected to a driving grinding wheel (20), a fixed grinding wheel (16) is fixedly installed inside the second grinding wheel plate (9), and another shaft plate is rotatably connected to a rotating grinding wheel (15), a plurality of first fixed buckle strips (901) are fixedly connected to one side of the second grinding wheel plate (9), the first fixed buckle strips (901) are fixedly connected to one of the shaft plates, a plurality of external rotating rods (22) are rotatably connected between the rotating grinding wheel (15) and the fixed grinding wheel (16), and the outer ring of each of the external rotating rods (22) is detachably connected to a mounting tube (13); One end of the external rotating rod (22) is located between the fine grinding wheel (19) and the driving grinding wheel (20), and a meshing gear (41) is fixedly mounted on the other end of the plurality of external rotating rods (22). A first motor (39) is fixedly mounted on one side of the second movable plate (6), and a speed matching gear (40) is sleeved on the output shaft of the first motor (39). The speed matching gear (40) and the meshing gear (41) are meshed for transmission. First hydraulic rods (7) are fixedly mounted on the opposite back surfaces of the two shaft plates, and the two first hydraulic rods (7) are respectively fixed to the bottom plate (1); The opposite surfaces between the shaft plate and the driving grinding wheel (20) are fixedly connected with a key connection cylinder (14), the two key connection cylinders (14) are connected together by mortise and tenon joints, an outer ring gear (18) is fixedly mounted on one side of the fine grinding wheel (19), an inner ring gear (17) is fixedly mounted on one side of the driving grinding wheel (20), a second motor (42) is fixedly mounted on each of the second fixing buckle strips (10), a driving gear is sleeved on the output shaft of each of the second motors (42), and the driving gear is meshed between the inner ring gear (17) and the outer ring gear (18); The outer ring of the external rotating rod (22) is rotatably connected to an external threaded rotating disk (25) near one end of the mounting tube (13); the external threaded rotating disk (25) is movably connected to an internal threaded rotating ring (26); the internal threaded rotating ring (26) is fixedly connected to a plurality of support bars (21) on a side facing the mounting tube (13); each of the support bars (21) is provided with a plurality of recessed areas (2101) at equal intervals; when the external threaded rotating disk (25) rotates, the internal threaded rotating ring (26) drives the support bars (21) to move radially along the outer ring of the mounting tube (13) and to abut against the inner ring of the spring.

2. The end burr treatment mechanism for spring processing according to claim 1, characterized in that: The outer ring of each of the external rotating rods (22) is fixedly connected to an internal rotating rod (27), and at least three second magnets (29) are arranged at the outer rings at both ends of the internal rotating rod (27). The inner rings at both ends of the mounting tube (13) are provided with a plurality of first magnets (28) next to each second magnet (29), and the first magnets (28) and the second magnets (29) have opposite magnetic poles and attract each other.

3. The end burr treatment mechanism for spring processing according to claim 1, characterized in that: Limit rods (31) are fixedly installed on the inner rings of both ends of the mounting tube (13), and each of the limit rods (31) is slidably connected to a movable block (30). The external rotating rod (22) is provided with a threaded section (32) near each internal rotating rod (27), and the movable block (30) is slidably connected to the external rotating rod (22) through the threaded section (32). Second wedge blocks (35) are movably connected to both ends of the mounting tube (13), and one side of the second wedge block (35) is fixedly connected to an internal spring (34), and one end of the internal spring (34) is fixedly connected to a first wedge block (33), one side of the first wedge block (33) is matched with one side of the movable block (30), and the other side of the second wedge block (35) extends outside the mounting tube (13), and the other two sides of the second wedge block (35) are arranged to contact the end of the spring during tilting processing.

4. The end burr treatment mechanism for spring processing according to claim 3, characterized in that: Each of the external rotating rods (22) is slidably connected to a slide rod (23) at one end facing the second grinding wheel plate (9), a counterweight ball (24) is fixedly mounted at one end of each of the slide rods (23), and the other end of the slide rod (23) is detachably connected to a limit cover.

5. The end burr treatment mechanism for spring processing according to claim 1, characterized in that: A fixed plate (12) is fixedly mounted on the opposite surface between the first grinding wheel plate (8) and the second grinding wheel plate (9); a second hydraulic rod (36) is fixedly connected to the bottom of the fixed plate (12); a check plate (37) is fixedly mounted on the bottom of each movable rod of the second hydraulic rod (36); a connecting strip (38) is fixedly mounted on one of the movable rods of the second hydraulic rod (36); the connecting strip (38) and the movable trajectory of the limit cover interfere with each other.

6. The end burr treatment mechanism for spring processing according to claim 1, characterized in that: Both sides of the bottom plate (1) are rotatably connected to rotating rods (3), the middle of each rotating rod (3) is provided with a thread, a middle plate (4) is rotatably connected between the middles of the two rotating rods (3), a top of the middle plate (4) is rotatably connected to a resistance plate (11), each mounting tube (13) passes through the resistance plate (11), and one end of the two mounting tubes (13) is transmission-connected to a pulley (2).

7. The end burr treatment mechanism for spring processing according to claim 6, characterized in that: The outer ring of the support bar (21) is anti-slip, and the support bar (21) is made of soft rubber. The fine grinding wheel (19) and the fixed grinding wheel (16) have the same major diameter and minor diameter. The contact plate (11) is made of a heat-conducting material.

8. The end burr treatment mechanism for spring processing according to claim 6, characterized in that: The middle portion of each rotating rod (3) is provided with a thread whose length does not exceed the distance between the two second hydraulic rods (36).

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