Automatic fixed-length cutting equipment for leaf spring processing

Abstract

The present invention relates to the technical field of combined processing equipment, and in particular to an automatic fixed-length cutting device for leaf spring processing, comprising an operating table, a leaf spring body and a first bow plate, wherein clamping groups are arranged on both left and right sides of the top of the operating table, the clamping groups are used to fix the leaf spring body, the clamping groups are composed of a conveying roller and an extrusion roller, the conveying roller is rotatably mounted on the operating table, the extrusion roller is located on the operating table, and the extrusion roller is close to the conveying roller, and the extrusion roller is used to squeeze and fix the leaf spring body on the conveying roller; by adopting the automatic fixed-length cutting method to process the leaf spring body, the processing method can be effectively simplified, automatic processing can be realized, the time and manpower of manual operation can be saved, and work efficiency can be improved; at the same time, the arc length of the leaf spring body can be directly measured by rolling measurement, which effectively simplifies the measurement method and improves the measurement accuracy.

Description

Technical Field

[0001] The invention relates to the technical field of combined processing equipment, in particular to an automatic fixed-length cutting equipment for leaf spring processing. Background Art

[0002] As we all know, leaf spring is an arc-shaped plate structure with strong elasticity. It is mainly used as a connecting device between the car body and the bridge frame on the car. The leaf spring can provide support and cushioning for the car body. After processing, the leaf spring is generally required to be cut into a specified length to meet the installation requirements. When using traditional cutting equipment, manual cooperation is required to measure the leaf spring, and then the measured position is cut by the cutting equipment. However, when using this method, due to the arc shape of the leaf spring, the accuracy of the measurement by the worker using the measuring ruler is poor, resulting in low cutting accuracy of the leaf spring. At the same time, the human-machine cooperation measurement and cutting method is more cumbersome, and the automatic fixed-length cutting of the leaf spring cannot be realized, and it consumes more manpower and has low work efficiency. Summary of the invention

[0003] In order to solve the above technical problems, the present invention provides an automatic fixed-length cutting device for leaf spring processing.

[0004] In order to achieve the above object, the technical solution adopted by the present invention is:

[0005] The automatic fixed-length cutting equipment for leaf spring processing comprises an operating table, a leaf spring body and a first bow plate. Clamping groups are arranged on both the left and right sides of the top of the operating table. The clamping groups are used to fix the leaf spring body. The clamping groups are composed of a conveying roller and a squeezing roller. The conveying roller is rotatably installed on the operating table. The squeezing roller is located on the operating table and is close to the conveying roller. The squeezing roller is used to squeeze and fix the leaf spring body on the conveying roller. The leaf spring body passes through the conveying roller and the squeezing roller in the clamping group. The conveying length of the leaf spring body between the conveying roller and the squeezing roller is measured according to the number of rotations of the squeezing roller and the rotation angle parameters.

[0006] The first arched plate is located above the operating table, and a laser generator and a light shielding plate are respectively arranged on the left and right sides of the inner wall of the first arched plate.

[0007] Furthermore, two first guide grooves are obliquely provided on the operating table, and the length direction of the first guide groove is along the radial direction of the leaf spring body. A first slider is slidably arranged in the first guide groove, and the extrusion roller is rotatably installed on the first slider. A first connecting plate is installed at the bottom of the first slider, and a first guide rail is installed at the bottom of the operating table. A translation plate is slidably arranged on the first guide rail, and the outer end of the first connecting plate is slidably installed on the translation plate. A cylinder is installed on the side wall of the translation plate, and the fixed end of the cylinder is installed at the bottom of the operating table.

[0008] Further, a conveying motor is installed at the bottom of one of the two first sliders, and the output end of the conveying motor is connected to the squeezing roller on the first slider by transmission, and a connecting shaft is installed at the bottom of the other first slider, and the connecting shaft is connected to the squeezing roller on the first slider by transmission, and a conical transmission disk is installed at the bottom of the connecting shaft, and a transmission rod is arranged on the conical transmission disk for transmission, and the transmission rod is inclined, and contact switches are installed at both ends of the transmission rod, and two baffles are installed at the bottom of the operating table, and the two baffles are located on the left and right sides of the transmission rod;

[0009] The transmission rod is located at the center point of the line between the conveying roller and the squeezing roller, and the transmission rod is perpendicular to the line.

[0010] Furthermore, a second guide rail is installed at the bottom of the operating table, the second guide rail is parallel to the transmission rod, and second sliders are slidably arranged on both sides of the left and right sides of the second guide rail, and a push-pull arm is tiltably and rotatably installed on the second slider, and the tilting directions of the two push-pull arms are opposite, and a second connecting plate is arranged at the outer end of the push-pull arm, and the second connecting plate is rotatably connected to the push-pull arm, and the second connecting plate is fixed to the bottom of the first slider on the conical transmission disk;

[0011] A connecting column is rotatably installed in the middle of the second connecting plate, a guide frame is fixed at the bottom of the connecting column, a third slider is slidably arranged in the guide frame, a tension spring is installed at the bottom of the third slider, and the bottom of the tension spring is fixed on the guide frame. The transmission rod passes through the two third sliders and is slidably connected, a torsion spring is installed on the outer wall of the connecting shaft, and the outer end of the torsion spring is fixed on the first connecting plate.

[0012] Furthermore, it also includes a second arched plate, which is buckled on the outside of the first arched plate, an outer plate is installed on the outer wall of the second arched plate, and the bottom of the outer plate is fixed on the operating table;

[0013] Two second guide grooves are provided on each side wall on both sides of the second arched plate, the two second guide grooves are inclined and inclined in opposite directions, a fourth slider is slidably arranged in the second guide groove, an arc-shaped clamping plate is installed at the outer end of the fourth slider, and the arc-shaped clamping plate is kept in a vertical state;

[0014] Two insertion rods are arranged in the second arch plate, and the two ends of the insertion rods pass through the two arc-shaped clamping plates and are slidably connected. Two compression springs are provided on each side wall on the left and right sides of the first arch plate. The outer end of the insertion rod is slidably installed in the third guide groove, and a compression spring is sleeved on the insertion rod between the outer wall of the arc-shaped clamping plate and the inner wall of the first arch plate. One end of the compression spring is fixed on the arc-shaped clamping plate, and the other end of the compression spring is fixed on the outer wall of the insertion rod.

[0015] Furthermore, it also includes a main motor, which is located above the second arched plate. A right-angle bracket is installed on the outer wall of the main motor, and the right-angle bracket is fixed to the second arched plate. A threaded rod is installed at the output end of the main motor, and a threaded tube is installed on the top of the first arched plate. The threaded rod passes through the second arched plate and is screwed into the threaded tube. The threaded rod is rotatably connected to the second arched plate.

[0016] Furthermore, a third connecting plate is installed on the outer wall of the first arched plate, a fifth sliding block is installed on the end of the third connecting plate, and the fifth sliding block is slidably installed on the second arched plate.

[0017] Furthermore, a sealing disc is installed on the top of the conveying roller.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows: by adopting the method of automatic fixed-length cutting to process the leaf spring body, the processing method can be effectively simplified, automated processing can be realized, the time and manpower of manual operation can be saved, and work efficiency can be improved. At the same time, the arc length of the leaf spring body can be directly measured through rolling measurement, which effectively simplifies the measurement method and improves the measurement accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 It is a schematic diagram of the structure of the present invention;

[0021] Figure 2 yes Figure 1 A schematic diagram of the enlarged structure of the second bow plate;

[0022] Figure 3 yes Figure 2 A schematic diagram of the cross-sectional structure of the second bow plate in the middle from the right;

[0023] Figure 4 yes Figure 3 A schematic diagram of the enlarged structure of the first bow plate;

[0024] Figure 5 yes Figure 1 Schematic diagram of the structure of the central operating console when viewed from above;

[0025] Figure 6 yes Figure 5 A schematic diagram of the partially enlarged structure at center A;

[0026] Figure 7 yes Figure 6A schematic diagram of the front structure of the first connecting plate;

[0027] Figure 8 yes Figure 6 Schematic diagram of the top view of the structure of the middle conical transmission disc;

[0028] Markings in the attached drawings: 1, operating table; 2, conveying roller; 3, squeezing roller; 4, leaf spring body; 5, first bow plate; 6, laser generator; 7, light shielding plate; 8, first guide groove; 9, first slider; 10, first connecting plate; 11, first guide rail; 12, translation plate; 13, cylinder; 14, connecting shaft; 15, conical transmission plate; 16, transmission rod; 17, contact switch; 18, baffle; 19, second guide rail; 20, second slider; 21, push-pull arm; 22 , second connecting plate; 23, connecting column; 24, guide frame; 25, third slider; 26, tension spring; 27, torsion spring; 28, second bow plate; 29, outer plate; 30, second guide groove; 31, fourth slider; 32, arc-shaped clamping plate; 33, plug rod; 34, third guide groove; 35, compression spring; 36, main motor; 37, right-angle bracket; 38, threaded rod; 39, threaded pipe; 40, third connecting plate; 41, fifth slider; 42, sealing disk; 43, conveying motor. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0030] In the description of the present invention, it should be noted that the orientations or positional relationships indicated by “center”, “up”, “down”, “left”, “right”, “vertical”, “horizontal”, “inside” and “outside”, etc., are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0031] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. This embodiment is written in a progressive manner.

[0032] like Figure 1 and Figure 4As shown, an automatic fixed-length cutting device for leaf spring processing of the present invention comprises an operating table 1, a leaf spring body 4 and a first arch plate 5. Clamping groups are arranged on both the left and right sides of the top of the operating table 1. The clamping group is used to fix the leaf spring body 4. The clamping group consists of a conveying roller 2 and a squeezing roller 3. The conveying roller 2 is rotatably mounted on the operating table 1. The squeezing roller 3 is located on the operating table 1, and the squeezing roller 3 is close to the conveying roller 2. The squeezing roller 3 is used to squeeze and fix the leaf spring body 4 on the conveying roller 2. The leaf spring body 4 passes through the conveying roller 2 and the squeezing roller 3 in the clamping group. The conveying length of the leaf spring body 4 between the conveying roller 2 and the squeezing roller 3 is measured according to parameters such as the number of rotations and the rotation angle of the squeezing roller 3.

[0033] The first arched plate 5 is located above the operating table 1 , and a laser generator 6 and a light shielding plate 7 are respectively arranged on the left and right sides of the inner wall of the first arched plate 5 .

[0034] In this embodiment, the squeezing roller 3 is pushed to move toward the conveying roller 2, and the squeezing roller 3 and the conveying roller 2 squeeze and fix the leaf spring body 4 therebetween. The two clamping groups can fix the leaf spring body 4 on the operating table 1, and the squeezing roller 3 is rotated. The squeezing roller 3 can push the leaf spring body 4 to be transmitted between the conveying roller 2 and the squeezing roller 3. The length of the leaf spring body 4 conveyed by the squeezing roller 3 can be measured by the parameters such as the number of rotations of the squeezing roller 3, the rotation angle and the circumference of the squeezing roller 3, so as to achieve the purpose of measuring the arc length of the leaf spring body 4. When the leaf spring body 4 measures the specified length, the measuring point on the leaf spring body 4 is transported to the bottom of the first arch plate 5. The first arch plate 5 is pushed to move downward, and the first arch plate 5 drives the laser generator 6 and the light blocking plate 7 to move synchronously. The laser generator 6 performs laser cutting on the leaf spring body 4, thereby realizing automatic fixed-length cutting of the leaf spring body 4. The light blocking plate 7 can shield the laser at the irradiation point of the laser generator 6. By adopting the automatic fixed-length cutting method to process the leaf spring body 4, the processing method can be effectively simplified, automatic processing can be realized, the time and manpower of manual operation can be saved, and work efficiency can be improved. At the same time, the arc length of the leaf spring body 4 can be directly measured by rolling measurement, which effectively simplifies the measurement method and improves the measurement accuracy.

[0035] like Figure 5 As shown, as a preferred embodiment of the above embodiment, two first guide grooves 8 are obliquely opened on the operating table 1, and the length direction of the first guide groove 8 is along the radial direction of the leaf spring body 4. A first slider 9 is slidably arranged in the first guide groove 8, and the extrusion roller 3 is rotatably installed on the first slider 9. A first connecting plate 10 is installed at the bottom of the first slider 9, and a first guide rail 11 is installed at the bottom of the operating table 1. A translation plate 12 is slidably arranged on the first guide rail 11, and the outer end of the first connecting plate 10 is slidably installed on the translation plate 12. A cylinder 13 is installed on the side wall of the translation plate 12, and the fixed end of the cylinder 13 is installed at the bottom of the operating table 1.

[0036] In this embodiment, the cylinder 13 pushes the translation plate 12 to move, and the translation plate 12 slides on the first guide rail 11. The translation plate 12 pushes the two first sliders 9 to move synchronously through the two first connecting plates 10. The first guide groove 8 guides the first slider 9, so that the first slider 9 moves along the radial direction of the leaf spring body 4. The first slider 9 pushes the squeezing roller 3 to move, and the squeezing roller 3 extrude and fix the leaf spring body 4. At the same time, the clamping direction of the conveying roller 2 and the squeezing roller 3 is along the radial direction of the leaf spring body 4, so as to ensure that the leaf spring body 4 is subjected to the squeezing force perpendicular to the inner wall of the leaf spring body 4, so as to avoid that when the leaf spring body 4 is tilted and offset by force, the squeezing roller 3 pushes the leaf spring body 4 to undergo elastic deformation, and causes the leaf spring body 4 to be unable to perform fixed-length cutting in a natural state, so as to avoid the leaf spring body 4 from collapsing after cutting, and at the same time improve the fixed-length accuracy of the leaf spring body 4. When the first slider 9 moves, the first slider 9 drives the first connecting plate 10 to slide on the translation plate 12.

[0037] like Figures 5 to 8 As shown, as a preferred embodiment of the above embodiment, a conveying motor 43 is installed at the bottom of one of the two first sliders 9, and the output end of the conveying motor 43 is connected to the squeezing roller 3 on the first slider 9 by transmission, and a connecting shaft 14 is installed at the bottom of the other first slider 9 by transmission, and the connecting shaft 14 is connected to the squeezing roller 3 on the first slider 9 by transmission, and a conical transmission disk 15 is installed at the bottom of the connecting shaft 14, and a transmission rod 16 is arranged on the conical transmission disk 15 for transmission, and the transmission rod 16 is inclined, and contact switches 17 are installed at both ends of the transmission rod 16, and two baffles 18 are installed at the bottom of the operating table 1, and the two baffles 18 are located on the left and right sides of the transmission rod 16;

[0038] The transmission rod 16 is located at the center point of the line connecting the conveying roller 2 and the squeezing roller 3 , and the transmission rod 16 is perpendicular to the line.

[0039] In this embodiment, when the leaf spring body 4 is measured, the conveying motor 43 drives the squeezing roller 3 thereon to rotate, and the squeezing roller 3 pushes the leaf spring body 4 to move, thereby realizing the automatic conveying of the leaf spring body 4. When the leaf spring body 4 moves, the leaf spring body 4 drives the squeezing roller 3 on the connecting shaft 14 to rotate, so that the connecting shaft 14 and the conical transmission disk 15 rotate synchronously, and the conical transmission disk 15 pushes the transmission rod 16 to move, and the transmission rod 16 drives the two contact switches 17 thereon to move, and a contact switch 17 on the transmission rod 16 contacts a baffle 18. At this time, the conveying motor 43 stops running, and the fixed-length position on the leaf spring body 4 is located below the first arch plate 5, pushing the first arch plate 5 to move downward and cutting the leaf spring body 4 through the laser generator 6 on the first arch plate 5, thereby completing the fixed-length cutting work.

[0040] In this embodiment, since the transmission rod 16 is located on the central vertical line of the line connecting the conveying roller 2 and the squeezing roller 3, the transmission rod 16 can be conveniently kept tangent to the arc surface where the center point of the wall thickness of the leaf spring body 4 is located, so that the length of the central arc surface of the leaf spring body 4 is measured by measuring the moving distance of the transmission rod 16, thereby improving the measurement accuracy of the leaf spring body 4 and avoiding the risk of one-sided vertical measurement and low measurement accuracy when simply measuring the inner wall or outer wall of the leaf spring body 4. After the leaf spring body 4 is cut off, the conical transmission disk 15 is rotated to move the transmission rod 16 in the opposite direction to the initial position. At this time, another contact switch 17 on the transmission rod 16 contacts another baffle 18, and the conical transmission disk 15 stops rotating, thereby limiting the moving distance of the transmission rod 16 by the two contact switches 17 and the two baffles 18, and the moving distance of the transmission rod 16 is the same as the fixed length of the leaf spring body 4, thereby realizing automatic fixed length of the leaf spring body 4.

[0041] like Figure 6 and Figure 7 As shown, as a preferred embodiment of the above, a second guide rail 19 is installed at the bottom of the operating table 1, and the second guide rail 19 is parallel to the transmission rod 16. Second sliders 20 are slidably arranged on both sides of the second guide rail 19. Push-pull arms 21 are tiltably and rotatably arranged on the second sliders 20. The tilting directions of the two push-pull arms 21 are opposite. A second connecting plate 22 is arranged at the outer end of the push-pull arm 21. The second connecting plate 22 is rotatably connected to the push-pull arm 21, and the second connecting plate 22 is fixed to the bottom of the first slider 9 on the conical transmission disk 15;

[0042] A connecting column 23 is rotatably installed in the middle of the second connecting plate 22, a guide frame 24 is fixed at the bottom of the connecting column 23, a third slider 25 is slidably arranged in the guide frame 24, a tension spring 26 is installed at the bottom of the third slider 25, and the bottom of the tension spring 26 is fixed to the guide frame 24, the transmission rod 16 passes through the two third sliders 25 and is slidably connected, a torsion spring 27 is installed on the outer wall of the connecting shaft 14, and the outer end of the torsion spring 27 is fixed to the first connecting plate 10.

[0043] In this embodiment, when the conical transmission disk 15 rotates, the conical transmission disk 15 pushes the transmission rod 16 to slide on the third slider 25, and the tension spring 26 generates an elastic tension on the third slider 25, so that the tension spring 26 pulls the transmission rod 16 and the conical transmission disk 15 to be close to each other through the third slider 25, so that it is convenient to always keep the close transmission state to avoid slipping. When the squeezing roller 3 moves, the squeezing roller 3 drives the first slider 9 and the conical transmission disk 15 to move synchronously, and the first slider 9 drives the two second connecting plates 22 to move synchronously. The two second connecting plates 22 pull the two push-pull arms 21 to move synchronously, and the push-pull arm 21 pulls the second slider 20 to slide on the second guide rail 19, and the push-pull arm 21 drives the connecting column 23 to move synchronously. Since the connecting column 23 is located in the middle of the push-pull arm 21, the transmission rod 16 on the two connecting columns 23 is always located on the vertical line where the center point of the line between the conveying roller 2 and the squeezing roller 3 is located, so that the transmission rod 16 can always measure the central arc surface where the thickness direction of the leaf spring is located, thereby improving the measurement accuracy. When the connecting shaft 14 moves with the squeezing roller 3, the conical transmission disk 15 and the transmission rod 16 move relative to each other, and the conical transmission disk 15 always maintains a transmission state with the transmission rod 16. When the leaf spring body 4 is measured at a fixed length, the connecting shaft 14 drives the torsion spring 27 to twist and elastically deform the torsion spring 27. When the measurement work is completed, the torsion spring 27 pushes the connecting shaft 14 to rotate in the opposite direction and restores the transmission rod 16 to its initial position.

[0044] like Figure 2 and Figure 3 As shown, as a preferred embodiment of the above, it further includes a second arched plate 28, which is buckled on the outside of the first arched plate 5, and an outer plate 29 is installed on the outer wall of the second arched plate 28, and the bottom of the outer plate 29 is fixed on the operating table 1;

[0045] Two second guide grooves 30 are provided on each side wall on both sides of the second arched plate 28. The two second guide grooves 30 are inclined in opposite directions. A fourth slider 31 is slidably arranged in the second guide groove 30. An arc-shaped clamping plate 32 is installed at the outer end of the fourth slider 31. The arc-shaped clamping plate 32 is kept in a vertical state.

[0046] Two insertion rods 33 are arranged in the second arch plate 28, and the two ends of the insertion rods 33 pass through the two arc-shaped clamping plates 32 and are slidably connected. Two compression springs 35 are provided on each side wall on the left and right sides of the first arch plate 5. The outer end of the insertion rod 33 is slidably installed in the third guide groove 34. The insertion rod 33 between the outer wall of the arc-shaped clamping plate 32 and the inner wall of the first arch plate 5 is sleeved with a compression spring 35. One end of the compression spring 35 is fixed on the arc-shaped clamping plate 32, and the other end of the compression spring 35 is fixed on the outer wall of the insertion rod 33.

[0047] In this embodiment, in the initial position, the end of the insertion rod 33 is located at the bottom of the third guide groove 34, the third guide groove 34 blocks and limits the insertion rod 33, the compression spring 35 is in an elastically compressed state, pushing the first arch plate 5 to move downward, the compression spring 35 pushes the arc clamping plate 32 to move, and the arc clamping plate 32 drives the fourth slider 31 to slide obliquely in the second guide groove 30, so that the arc clamping plate 32 moves obliquely. Since the inclination directions of the two second guide grooves 30 on the inner side wall of the second arch plate 28 are opposite, the two arcs at the corresponding positions are The clamps 32 move downward synchronously and approach each other. The two arc-shaped clamps 32 at the corresponding positions move to the outer wall and the inner wall of the leaf spring body 4 and squeeze and fix the leaf spring body 4, thereby preventing the leaf spring body 4 from moving during cutting. When the arc-shaped clamps 32 contact the outer wall of the leaf spring body 4, the arc-shaped clamps 32 stop moving. At this time, the first bow plate 5 continues to move downward, and the insertion rod 33 slides in the third guide groove 34. The laser generator 6 that continues to move cuts the leaf spring body 4 clamped by the arc-shaped clamps 32.

[0048] In this embodiment, by adopting the structure of the second guide groove 30, the fourth slider 31, the arc-shaped clamping plate 32, the insertion rod 33, the third guide groove 34 and the compression spring 35, the purpose of clamping the leaf spring body 4 first and then cutting it can be achieved, the stability of the processing of the leaf spring body 4 can be improved, and the linkage movement of the equipment can be realized, avoiding the cumbersome structure when multiple power mechanisms are used to push the arc-shaped clamping plate 32 and the first bow plate 5 to move separately, reducing the cost investment, and improving the synchronization of the connected movement. After the leaf spring body 4 is cut off, the first bow plate 5 is pulled to move upward. At this time, the insertion rod 33 slides downward in the third guide groove 34. When the insertion rod 33 slides to the end of the third guide groove 34, the inner wall of the third guide groove 34 pushes the insertion rod 33 to move upward synchronously. At this time, the insertion rod 33 pushes the arc-shaped clamping plate 32 to move upward, and the arc-shaped clamping plate 32 tilts and moves and pushes the compression spring 35 to elastically deform.

[0049] like Figure 3 As shown, as a preferred embodiment of the above embodiment, it also includes a main motor 36, which is located above the second bow plate 28. A right-angle bracket 37 is installed on the outer wall of the main motor 36, and the right-angle bracket 37 is fixed on the second bow plate 28. A threaded rod 38 is installed at the output end of the main motor 36, and a threaded tube 39 is installed on the top of the first bow plate 5. The threaded rod 38 passes through the second bow plate 28 and is screwed into the threaded tube 39. The threaded rod 38 is rotatably connected to the second bow plate 28.

[0050] In this embodiment, the main motor 36 pushes the threaded tube 39 to move up and down through the threaded rod 38, thereby driving the first arch plate 5 to move up and down.

[0051] like Figure 2As shown, as a preferred embodiment of the above embodiment, a third connecting plate 40 is installed on the outer wall of the first arch plate 5, a fifth slider 41 is installed at the end of the third connecting plate 40, and the fifth slider 41 is slidably installed on the second arch plate 28.

[0052] In this embodiment, by providing the third connecting plate 40 and the fifth sliding block 41 , the first arch plate 5 can be conveniently guided, thereby improving its stability during movement and preventing the first arch plate 5 and the second arch plate 28 from rotating relative to each other.

[0053] like Figure 1 As shown, as a preferred embodiment of the above embodiment, a sealing disk 42 is installed on the top of the conveying roller 2.

[0054] In this embodiment, by providing a sealing disk 42 , the leaf spring body 4 between the conveying roller 2 and the squeezing roller 3 can be conveniently blocked and limited.

[0055] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. An automatic fixed-length cutting device for leaf spring processing, characterized in that: The invention comprises an operating table (1), a leaf spring body (4) and a first bow plate (5). A clamping group is arranged on both the left and right sides of the top of the operating table (1). The clamping group is used to fix the leaf spring body (4). The clamping group is composed of a conveying roller (2) and a squeezing roller (3). The conveying roller (2) is rotatably mounted on the operating table (1). The squeezing roller (3) is located on the operating table (1) and is close to the conveying roller (2). The squeezing roller (3) is used to squeeze and fix the leaf spring body (4) on the conveying roller (2). The leaf spring body (4) passes through the conveying roller (2) and the squeezing roller (3) in the clamping group. The conveying length of the leaf spring body (4) between the conveying roller (2) and the squeezing roller (3) is measured according to the number of rotations and the rotation angle parameters of the squeezing roller (3). The first arched plate (5) is located above the operating table (1), and a laser generator (6) and a light shielding plate (7) are respectively arranged on the left and right sides of the inner wall of the first arched plate (5); The operating table (1) is provided with two first guide grooves (8) obliquely, the length direction of the first guide grooves (8) being along the radial direction of the leaf spring body (4), a first slider (9) being slidably arranged in the first guide grooves (8), the squeezing roller (3) being rotatably mounted on the first slider (9), a first connecting plate (10) being mounted at the bottom of the first slider (9), a first guide rail (11) being mounted at the bottom of the operating table (1), a translation plate (12) being slidably arranged on the first guide rail (11), the outer end of the first connecting plate (10) being slidably mounted on the translation plate (12), a cylinder (13) being mounted on the side wall of the translation plate (12), and a fixed end of the cylinder (13) being mounted at the bottom of the operating table (1); A conveying motor (43) is installed at the bottom of one of the two first sliders (9), and the output end of the conveying motor (43) is connected to the squeezing roller (3) on the first slider (9) in a transmission manner. A connecting shaft (14) is installed at the bottom of the other first slider (9), and the connecting shaft (14) is connected to the squeezing roller (3) on the first slider (9) in a transmission manner. A conical transmission disk (15) is installed at the bottom of the connecting shaft (14), and a transmission rod (16) is arranged on the conical transmission disk (15). The transmission rod (16) is inclined, and contact switches (17) are installed at both ends of the transmission rod (16). Two baffles (18) are installed at the bottom of the operating table (1), and the two baffles (18) are located on the left and right sides of the transmission rod (16); The transmission rod (16) is located at the center point of the line connecting the conveying roller (2) and the squeezing roller (3), and the transmission rod (16) is perpendicular to the line; A second guide rail (19) is installed at the bottom of the operating table (1), the second guide rail (19) is parallel to the transmission rod (16), and second sliders (20) are slidably installed on both sides of the second guide rail (19). A push-pull arm (21) is installed on the second slider (20) in an inclined and rotatable manner, and the inclination directions of the two push-pull arms (21) are opposite. A second connecting plate (22) is provided at the outer end of the push-pull arm (21), and the second connecting plate (22) is rotatably connected to the push-pull arm (21). The second connecting plate (22) is fixed to the bottom of the first slider (9) on the conical transmission disk (15); A connecting column (23) is rotatably mounted in the middle of the second connecting plate (22), a guide frame (24) is fixed at the bottom of the connecting column (23), a third sliding block (25) is slidably arranged in the guide frame (24), a tension spring (26) is mounted at the bottom of the third sliding block (25), the bottom of the tension spring (26) is fixed on the guide frame (24), a transmission rod (16) passes through the two third sliding blocks (25) and is slidably connected, a torsion spring (27) is mounted on the outer wall of the connecting shaft (14), and the outer end of the torsion spring (27) is fixed on the first connecting plate (10).

2. The automatic cutting-to-length device for leaf spring processing according to claim 1, characterized in that: It also includes a second arched plate (28), which is buckled on the outside of the first arched plate (5), an outer plate (29) is installed on the outer wall of the second arched plate (28), and the bottom of the outer plate (29) is fixed on the operating table (1); Two second guide grooves (30) are provided on each side wall on both sides of the second arch plate (28), the two second guide grooves (30) are inclined and inclined in opposite directions, a fourth slider (31) is slidably arranged in the second guide groove (30), an arc-shaped clamping plate (32) is installed at the outer end of the fourth slider (31), and the arc-shaped clamping plate (32) is kept in a vertical state; Two insertion rods (33) are arranged in the second arch plate (28), and the two ends of the insertion rods (33) pass through the two arc-shaped clamping plates (32) and are slidably connected. Two compression springs (35) are provided on each side wall on the left and right sides of the first arch plate (5). The outer end of the insertion rod (33) is slidably installed in the third guide groove (34). A compression spring (35) is sleeved on the insertion rod (33) between the outer wall of the arc-shaped clamping plate (32) and the inner wall of the first arch plate (5). One end of the compression spring (35) is fixed on the arc-shaped clamping plate (32), and the other end of the compression spring (35) is fixed on the outer wall of the insertion rod (33).

3. The automatic cutting-to-length device for leaf spring processing according to claim 2, characterized in that: The invention also comprises a main motor (36), the main motor (36) is located above the second arched plate (28), a right angle bracket (37) is installed on the outer wall of the main motor (36), the right angle bracket (37) is fixed on the second arched plate (28), a threaded rod (38) is installed on the output end of the main motor (36), a threaded tube (39) is installed on the top of the first arched plate (5), the threaded rod (38) passes through the second arched plate (28) and is screwed into the threaded tube (39), and the threaded rod (38) is rotatably connected to the second arched plate (28).

4. The automatic cutting-to-length device for leaf spring processing according to claim 3, characterized in that: A third connecting plate (40) is installed on the outer wall of the first arched plate (5), a fifth sliding block (41) is installed at the end of the third connecting plate (40), and the fifth sliding block (41) is slidably installed on the second arched plate (28).

5. The automatic cutting-to-length device for leaf spring processing according to claim 4, characterized in that: A sealing disc (42) is installed on the top of the conveying roller (2).

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