A fixed-length measuring device for an aluminum bar hot shear

Abstract

This application relates to the technical field of machine tool measurement and control parts, and specifically relates to a fixed-length measurement device for an aluminum bar hot shear. The aluminum bar hot shear at least includes a feeding mechanism, a shearing mechanism, and a discharging mechanism. The fixed-length measurement device includes a fixed frame, a travel switch assembly, and a translation assembly. The fixed frame includes a rear fixed plate and a front fixed plate. The travel switch assembly is slidably arranged on the fixed frame. The translation assembly includes a translation rotating shaft and a sliding component. The fixed-length measurement device for an aluminum bar hot shear described in this case can adjust the front and rear positions of the travel switch assembly through the translation assembly to meet the shearing requirements of short aluminum bars of different lengths. It can also adjust the longitudinal position of the travel switch assembly through the longitudinal translation assembly to compensate for the position change of the center of the front end of the aluminum bar and ensure the shearing accuracy. For the fixed-length measurement device for an aluminum bar hot shear described in this case, the translation assembly and the longitudinal translation assembly are convenient and safe to operate.

Description

Technical Field

[0001] This application relates to the technical field of machine tool measurement and control parts, and particularly relates to a fixed-length measurement device for an aluminum bar hot shearer. Background Art

[0002] An aluminum bar hot shearer is an industrial device specifically used for shearing aluminum bars or aluminum alloy materials in a high-temperature state, and is widely used in the aluminum alloy processing industry. An aluminum bar hot shearer generally includes a feeding device for conveying a heated long aluminum bar, a shearing device for shearing the long aluminum bar, a discharging device for conveying the sheared short aluminum bar away, and also includes a fixed-length measurement device for limiting and measuring the length of the short aluminum bar. The fixed-length measurement device in the prior art simply designs a lead screw mechanism to adjust the front and back directions of a travel switch, and measures and controls the length of the short aluminum bar by the way of the aluminum bar extruding the travel switch. However, it still has the following problems: the longitudinal height cannot be adjusted.

[0003] First, since the aluminum bar adheres to the shearing blade and moves upward with the shearing blade for a certain distance after being cut, at this time the aluminum bar will touch the lower part of the travel switch upward. After long-term use, there is a degree of freedom of movement in the up and down directions at the end of the travel switch and it shows a sag in the normal state under the action of gravity. The travel switch cannot accurately align with the center of the aluminum bar, affecting the shearing accuracy. Then, when the length-diameter ratio of the short aluminum bar changes, the degree of downward deformation under the action of gravity also changes, and it is necessary to adjust the longitudinal position of the travel switch for compensation. Summary of the Invention

[0004] A fixed-length measurement device for an aluminum bar hot shearer, the aluminum bar hot shearer at least includes a feeding mechanism for transporting the aluminum bar forward, a shearing mechanism for shearing the aluminum bar into short bars, and a discharging mechanism for receiving and transporting the short bars. The fixed-length measurement device is arranged in front of the shearing mechanism, and the fixed-length measurement device includes a fixed frame, a travel switch assembly, and a translation assembly;

[0005] The fixed frame includes a rear fixed plate fixed at the front end of the shearing mechanism, a front fixed plate arranged in front of the rear fixed plate, and a total of two fixed rails, one on the left and one on the right, are also arranged between the rear fixed plate and the front fixed plate. A slide rail boss is arranged inside the fixed rail;

[0006] The travel switch assembly is slidably arranged on the fixed frame;

[0007] The translation assembly is arranged on the fixed frame and is used to drive the travel switch assembly to move in the front and back directions. The translation assembly includes a translation rotating shaft and a sliding component;

[0008] The translation rotation shaft includes a rear plate opening provided at the front end of the rear fixing plate, a rear plate circular cavity provided in the middle of the rear plate opening, a front plate through hole provided in the front fixing plate, and a front plate annular groove provided in the front plate through hole. The translation rotation shaft further includes an external threaded rod passing through the front plate through hole and inserted into the rear plate opening, a rear limiting ring formed at the rear end of the external threaded rod and cooperating with the rear plate circular cavity, and a first rotating wheel provided at the front end of the external threaded rod.

[0009] The sliding assembly includes a rectangular sliding base, a transmission chamber provided in the sliding base, a sliding front hole provided at the front end of the transmission chamber and allowing the external threaded rod to pass through, a rear threaded hole provided at the rear end of the transmission chamber and meshing with the external threaded rod, a fixed lower cylinder provided below the sliding base and communicating with the transmission chamber, a limiting convex ring provided on the upper inner wall of the fixed lower cylinder, and a lower cylinder through hole penetrating the lower half of the fixed lower cylinder horizontally. Slide rail grooves cooperating with the slide rail convex platforms are respectively provided on the left and right sides of the sliding base.

[0010] The fixed scale measuring device further includes a longitudinal movement assembly, and the longitudinal movement assembly includes:

[0011] A fixed rotation shaft, including a rotating sleeve sleeved on the external threaded rod and arranged through the front plate through hole, a front limiting ring provided on the outer wall of the rotating sleeve and cooperating with the front plate annular groove, a second rotating wheel provided at the front end of the rotating sleeve, and a driving key provided on the outer wall of the rotating sleeve.

[0012] A follower rotation shaft, including a follower sleeve sleeved on the outer wall of the rotating sleeve, an axial slot provided on the outer wall of the follower sleeve and cooperating with the driving key, a driving bevel gear provided on the left side of the follower sleeve and inserted into the transmission chamber, and a follower annular groove provided on the outer wall of the driving bevel gear and rotatably cooperating with the sliding front hole.

[0013] A lifting assembly, including a driven bevel gear rotatably provided in the fixed lower cylinder, a lifting annular groove provided on the outer wall of the driven bevel gear and rotatably cooperating with the limiting convex ring, a driving screw rod provided at the lower end of the driven bevel gear, a driven screw tube screwed on the driving screw rod, a screw tube transverse hole provided at the lower end of the driven screw tube, a lifting sliding tube slidably sleeved on the outer wall of the fixed lower cylinder, and a lifting cross bar provided on the inner wall of the lifting sliding tube. The lifting cross bar passes through the lower cylinder through hole and the screw tube transverse hole.

[0014] As a further implementation:

[0015] The travel switch assembly includes a fixed cross cylinder provided below the lifting sliding tube, a sliding shaft body slidably provided in the fixed cross cylinder, a switch chamber provided in the sliding shaft body, a return compression spring wound around the sliding shaft body and driving it to reset backward, a pressure roller provided at the rear end of the sliding shaft body, and a travel switch body provided in the fixed cross cylinder corresponding to the switch chamber.

[0016] As a further embodiment:

[0017] On either side of any fixed track, there is also a measuring scale for measuring the length of the aluminum rod.

[0018] Beneficial effects:

[0019] The fixed-length measuring device for the aluminum rod hot shearer described in this case can adjust the front and back positions of the travel switch assembly through the translation assembly to adapt to the shearing requirements of short aluminum rods of different lengths; it can also adjust the longitudinal position of the travel switch assembly through the longitudinal movement assembly to compensate for the position change of the center of the front end of the aluminum rod and ensure the shearing accuracy.

[0020] For the fixed-length measuring device for the aluminum rod hot shearer described in this case, the translation assembly and the longitudinal movement assembly are convenient and safe to operate:

[0021] Convenient to operate:

[0022] By respectively turning the first runner and the second runner, the translation operation and the longitudinal movement operation can be realized;

[0023] Safe to operate:

[0024] Both the first runner and the second runner are designed at the very front end of the fixed frame, away from the shearing mechanism and the aluminum rod, and the operation can be synchronously controlled without stopping the machine.

[0025] For the fixed-length measuring device for the aluminum rod hot shearer described in this case, the structure is reasonable and the integration degree is high:

[0026] The translation rotating shaft, the fixed rotating shaft and the follower rotating shaft are coaxially arranged, which greatly reduces the space occupation, and the follower rotating shaft can not only translate along with the translation assembly, but also does not affect its rotation driven by the fixed rotating shaft. Description of the drawings

[0027] Figure 1 is a schematic diagram of an embodiment of the hot shearer.

[0028] Figure 2 is a schematic diagram of the first state of the fixed-length measuring device.

[0029] Figure 3 is a schematic diagram of the second state of the fixed-length measuring device.

[0030] Figure 4 is a schematic diagram of the third state of the fixed-length measuring device.

[0031] Figure 5 is a cross-sectional view of a state of the fixed-length measuring device.

[0032] Figure 6 is a cross-sectional view of the second state of the fixed-length measuring device.

[0033] Figure 7 is the first partial cross-sectional view of the fixed-length measuring device.

[0034] Figure 8 is Figure 7 an enlarged schematic view of part A in

[0035] Figure 9 is the second partial cross-sectional view of the fixed-length measuring device.

[0036] Figure 10 is Figure 9 an enlarged schematic view of part B in (unlocked state).

[0037] Figure 11 is Figure 9 an enlarged schematic view of part B in (unlocked state).

[0038] In the figure:

[0039] 9. Aluminum bar hot shear, 91. Loading mechanism, 92. Shearing mechanism, 93. Unloading mechanism;

[0040] 8. Aluminum bar;

[0041] 7. Fixed-length measuring device;

[0042] 1. Fixed frame, 11. Rear fixed plate, 12. Front fixed plate, 13. Fixed track, 14. Slide rail boss;

[0043] 2. Translation assembly;

[0044] 21. Translation rotating shaft, 211. Rear plate opening, 212. Rear plate circular cavity, 213. Front plate through hole, 214. Front plate annular groove, 215. External threaded rod, 216. Rear limit ring, 217. First runner;

[0045] 22. Sliding component, 221. Sliding base, 222. Transmission chamber, 223. Sliding front hole, 224. Rear threaded hole, 225. Fixed lower cylinder, 226. Limit convex ring, 227. Lower cylinder through hole;

[0046] 3. Longitudinal movement assembly;

[0047] 31. Fixed rotating shaft, 311. Rotating sleeve, 312. Front limit ring, 313. Second runner, 314. Driving key;

[0048] 32. Follow-up rotating shaft, 321. Follow-up sleeve, 322. Axial slot, 323. Driving bevel gear, 324. Follow-up annular groove;

[0049] 33. Lifting assembly, 331. Driven bevel gear, 332. Lifting ring groove, 333. Active screw rod, 334. Driven screw tube, 335. Transverse hole in the screw tube, 336. Lifting sliding cylinder, 337. Lifting cross bar;

[0050] 4. Travel switch assembly, 41. Fixed horizontal cylinder, 42. Sliding shaft body, 43. Switch chamber, 44. Return compression spring, 45. Pressured roller, 46. Travel switch body. Specific implementation mode

[0051] A fixed-length measuring device for an aluminum bar hot shearer. The aluminum bar hot shearer 9 at least includes a feeding mechanism 91 for transporting the aluminum bar 8 forward, a shearing mechanism 92 for cutting the aluminum bar 8 into short bars, and a discharging mechanism 93 for receiving and conveying the short bars. The fixed-length measuring device 7 is arranged in front of the shearing mechanism 92. The fixed-length measuring device 7 includes a fixed frame 1, a travel switch assembly 4, and a translation assembly 2;

[0052] The fixed frame 1 includes a rear fixing plate 11 fixed at the front end of the shearing mechanism 92 and a front fixing plate 12 arranged in front of the rear fixing plate 11. There are two fixed rails 13, one on the left and one on the right, between the rear fixing plate 11 and the front fixing plate 12. A slide rail boss 14 is arranged inside the fixed rail 13;

[0053] The travel switch assembly 4 is slidably arranged on the fixed frame 1;

[0054] The translation assembly 2 is arranged on the fixed frame 1 and is used to drive the travel switch assembly 4 to move in the front-back direction. The translation assembly 2 includes a translation rotating shaft 21 and a sliding component 22;

[0055] The translation rotating shaft 21 includes a rear plate opening 211 arranged at the front end of the rear fixing plate 11, a rear plate circular cavity 212 arranged in the middle of the rear plate opening 211, a front plate through hole 213 arranged inside the front fixing plate 12, and a front plate ring groove 214 arranged inside the front plate through hole 213. The translation rotating shaft 21 further includes an external threaded rod 215 passing through the front plate through hole 213 and inserted into the rear plate opening 211, a rear limiting ring 216 formed at the rear end of the external threaded rod 215 and cooperating with the rear plate circular cavity 212, and a first runner 217 arranged at the front end of the external threaded rod 215;

[0056] The sliding assembly 22 includes a rectangular sliding base 221, a transmission chamber 222 provided in the sliding base 221, a sliding front hole 223 provided at the front end of the transmission chamber 222 and allowing the external threaded rod 215 to pass through, a rear threaded hole 224 provided at the rear end of the transmission chamber 222 and meshing with the external threaded rod 215, a fixed lower cylinder 225 provided below the sliding base 221 and communicating with the transmission chamber 222, a limiting convex ring 226 provided on the upper inner wall of the fixed lower cylinder 225, and a lower cylinder through hole 227 penetrating the lower half of the fixed lower cylinder 225 transversely. Slide rail grooves cooperating with the slide rail bosses 14 are respectively provided on the left and right sides of the sliding base 221.

[0057] The fixed scale measuring device 7 further includes a longitudinal movement assembly 3, and the longitudinal movement assembly 3 includes:

[0058] A fixed rotating shaft 31, including a rotating sleeve 311 sleeved on the external threaded rod 215 and passing through the front plate through hole 213, a front limiting ring 312 provided on the outer wall of the rotating sleeve 311 and cooperating with the front plate annular groove 214, a second runner 313 provided at the front end of the rotating sleeve 311, and a driving key 314 provided on the outer wall of the rotating sleeve 311;

[0059] A follower rotating shaft 32, including a follower sleeve 321 sleeved on the outer wall of the rotating sleeve 311, an axial slot 322 provided on the outer wall of the follower sleeve 321 and cooperating with the driving key 314, a driving bevel gear 323 provided on the left side of the follower sleeve 321 and inserted into the transmission chamber 222, and a follower annular groove 324 provided on the outer wall of the driving bevel gear 323 and rotatably cooperating with the sliding front hole 223;

[0060] A lifting assembly 33, including a driven bevel gear 331 rotatably provided in the fixed lower cylinder 225, a lifting annular groove 332 provided on the outer wall of the driven bevel gear 331 and rotatably cooperating with the limiting convex ring 226, a driving screw 333 provided at the lower end of the driven bevel gear 331, a driven screw tube 334 screwed on the driving screw 333, a screw tube transverse hole 335 provided at the lower end of the driven screw tube 334, a lifting sliding cylinder 336 slidably sleeved on the outer wall of the fixed lower cylinder 225, and a lifting cross bar 337 provided on the inner wall of the lifting sliding cylinder 336. The lifting cross bar 337 passes through the lower cylinder through hole 227 and the screw tube transverse hole 335.

[0061] As a further implementation:

[0062] The travel switch assembly 4 includes a fixed cross cylinder 41 provided below the lifting sliding cylinder 336, a sliding shaft body 42 slidably provided in the fixed cross cylinder 41, a switch chamber 43 provided in the sliding shaft body 42, a return compression spring 44 wound around the sliding shaft body 42 and driving it to reset backward, a pressure roller 45 provided at the rear end of the sliding shaft body 42, and a travel switch body 46 provided in the fixed cross cylinder 41 corresponding to the switch chamber 43.

[0063] As a further implementation:

[0064] A measuring scale for measuring the length of the aluminum rod is further provided on the side of any fixed track 13.

[0065] It should be noted that:

[0066] The translation rotating shaft 21 further includes a front locking ring 218 provided on the first runner 217;

[0067] The fixed rotating shaft 31 further includes a rear locking ring 315 provided on the second runner 313;

[0068] It further includes a double locking assembly 5, and the double locking assembly 5 includes a locking housing 51, a rotating core disc 52, and a lock core assembly 53.

[0069] The locking housing 51 includes an L-shaped support bracket 511 provided in front of the front fixing plate 12, a disc base 512 provided above the support bracket 511, a central circular cavity 513 provided in the middle of the disc base 512, an arc-shaped upper hole 514 provided above the central circular cavity 513, an arc-shaped guide bar 515 provided in the arc-shaped upper hole 514. Locking core round holes 516 are respectively provided on the left and right of the central circular cavity 513, and a stop convex ring 517 is provided in the middle of the locking core round hole 516;

[0070] The rotating core disc 52 includes a circular disc body 521 rotatably provided in the central circular cavity 513. Arc-shaped sliding grooves 522 are circumferentially distributed on the front and rear of the circular disc body 521. The circular disc body 521 is also provided with a perforated lug 523 passing through the arc-shaped upper hole 514 and inserted and matched with the arc-shaped guide bar 515. A core disc compression spring 524 is also wound around the arc-shaped guide bar 515;

[0071] There are a pair of the lock core assemblies 5. One lock core assembly 5 is respectively provided on the front and rear of the rotating core disc 52. The lock core assembly 5 includes a sliding ring 531 slidably provided in the locking core round hole 516, a pressure plug 532 circumferentially distributed on the inner side of the sliding ring 531 and inserted and matched with the arc-shaped sliding groove 522, and a sliding lock ring 533 provided on the outer side of the sliding ring 531 and passing through the stop convex ring 517. The sliding lock ring 533 is locked and matched with the front locking ring 218 or the rear locking ring 315.

[0072] As shown in the attached specification: Figure 1 as follows:

[0073] The aluminum rod 8 is conveyed forward by the feeding mechanism 91 until the front end of the aluminum rod 8 abuts against the travel switch assembly 4;

[0074] The pressure roller 45 and the sliding shaft body 42 of the travel switch assembly 4 move backward against the damping of the return compression spring 44 and finally trigger the travel switch body 46. The travel switch body 46 controls the feeding mechanism 91 to stop feeding, and the shearing mechanism 92 performs shearing.

[0075] The fixed-length measuring device described in this case can adjust the front-back position and up-down position of the travel switch assembly 4:

[0076] S1, Front-back position adjustment:

[0077] Rotate the first runner 217 and the external threaded rod 215;

[0078] The external threaded rod 215 acts on the rear threaded hole 224, thereby driving the sliding component 22 to move in the front-back direction;

[0079] At the same time, the sliding front hole 223 acts on the follower ring groove 324, thereby driving the follower rotating shaft 32 to move synchronously in the front-back direction. The lifting component 33 and the travel switch assembly 4 also move in the front-back direction following the sliding component 22;

[0080] S2, Up-down position adjustment:

[0081] Rotate the second runner 313, the rotating sleeve 311, and the driving key 314;

[0082] The driving key 314 acts on the axial slot 322 to drive the follower rotating shaft 32 to rotate;

[0083] The driving bevel gear 323 drives the driven bevel gear 331 and the driving screw 333 to rotate;

[0084] The driving screw 333 drives the driven screw tube 334 and the screw tube transverse hole 335 to move up and down. The screw tube transverse hole 335 drives the lifting cross bar 337 and the lifting sliding cylinder 336 to move up and down, and finally drives the travel switch assembly 4 to move up and down.

Claims

1. A device for measuring the length of an aluminum bar hot shear, the aluminum bar hot shear (9) comprising at least a loading mechanism (91) for transporting the aluminum bar (8) forward, a shearing mechanism (92) for shearing the aluminum bar (8) into short bars, and a unloading mechanism (93) for receiving and conveying the short bars, characterized in that: The length measuring device (7) is arranged in front of the shearing mechanism (92), and the length measuring device (7) comprises a fixed frame (1), and further comprises: A travel switch assembly (4) slidably disposed on the fixed frame (1); A translation assembly (2) is arranged on the fixed frame (1) and is used to drive the travel switch assembly (4) to move in a front-rear direction; The fixed frame (1) comprises a rear fixed plate (11) fixed to the front end of the shearing mechanism (92), and a front fixed plate (12) arranged in front of the rear fixed plate (11); two fixed rails (13) are arranged between the rear fixed plate (11) and the front fixed plate (12), one on the left and one on the right; and a slide rail boss (14) is arranged on the inner side of the fixed rail (13); The translation assembly (2) comprises a translation shaft (21) and a sliding assembly (22); The translation shaft (21) comprises a rear plate opening (211) provided at the front end of the rear fixing plate (11), a rear plate circular cavity (212) provided in the middle of the rear plate opening (211), a front plate through hole (213) provided in the front fixing plate (12), and a front plate annular groove (214) provided in the front plate through hole (213); the translation shaft (21) further comprises an externally threaded rod (215) passing through the front plate through hole (213) and inserted into the rear plate opening (211), a rear limiting ring (216) formed at the rear end of the externally threaded rod (215) and cooperating with the rear plate circular cavity (212), and a first rotating wheel (217) provided at the front end of the externally threaded rod (215); The sliding assembly (22) comprises a rectangular sliding base (221), a transmission chamber (222) arranged in the sliding base (221), a sliding front hole (223) arranged at the front end of the transmission chamber (222) and accommodating the external threaded rod (215) to pass through, a rear threaded hole (224) arranged at the rear end of the transmission chamber (222) and meshing with the external threaded rod (215), a fixed lower cylinder (225) arranged below the sliding base (221) and communicating with the transmission chamber (222), a limiting convex ring (226) arranged above the inner wall of the fixed lower cylinder (225), and a lower cylinder through hole (227) penetrating the lower half of the fixed lower cylinder (225) in the transverse direction, and the sliding base (221) is provided with a slide rail groove on the left and right sides respectively, which cooperates with the slide rail boss (14); It also includes a longitudinal movement assembly (3), wherein the longitudinal movement assembly (3) includes: The fixed rotating shaft (31) comprises a rotating sleeve (311) sleeved on the external threaded rod (215) and passing through the front plate through hole (213), a front stop ring (312) provided on the outer wall of the rotating sleeve (311) and cooperating with the front plate ring groove (214), a second rotating wheel (313) provided at the front end of the rotating sleeve (311), and a driving key (314) provided on the outer wall of the rotating sleeve (311); The follower shaft (32) comprises a follower sleeve (321) sleeved on the outer wall of the rotating sleeve (311), an axial slot (322) provided on the outer wall of the follower sleeve (321) and cooperating with the driving key (314), a driving bevel gear (323) provided on the left side of the follower sleeve (321) and inserted into the transmission chamber (222), and a follower ring groove (324) provided on the outer wall of the driving bevel gear (323) and rotatably cooperating with the sliding front hole (223); The lifting assembly (33) comprises a driven bevel gear (331) rotatably arranged in a fixed lower cylinder (225), a lifting ring groove (332) arranged on the outer wall of the driven bevel gear (331) and rotatably matched with a limiting convex ring (226), a driving screw (333) arranged at the lower end of the driven bevel gear (331), a driven solenoid (334) screwed on the driving screw (333), a solenoid transverse hole (335) arranged at the lower end of the driven solenoid (334), a lifting slide (336) slidably sleeved on the outer wall of the fixed lower cylinder (225), and a lifting cross bar (337) arranged on the inner wall of the lifting slide (336), wherein the lifting cross bar (337) passes through the lower cylinder through hole (227) and the solenoid transverse hole (335).

2. The aluminum bar hot shearing machine length measuring device according to claim 1, characterized in that: The travel switch assembly (4) includes a fixed horizontal cylinder (41) arranged below the lifting slide cylinder (336), a sliding shaft (42) slidably arranged in the fixed horizontal cylinder (41), a switch chamber (43) arranged in the sliding shaft (42), a return compression spring (44) wound around the sliding shaft (42) and driving it to return backward, a pressure roller (45) arranged at the rear end of the sliding shaft (42), and a travel switch body (46) arranged in the fixed horizontal cylinder (41) at a position corresponding to the switch chamber (43).

3. The aluminum bar hot shearing machine length measuring device according to claim 2, characterized in that: A measuring scale for measuring the length of the aluminum rod is also provided on the side of any fixed rail (13).

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