Crankshaft heat treatment tool clamp

Abstract

The utility model belongs to the technical field of crankshaft machining, and particularly relates to a crankshaft heat treatment tool clamp which comprises a box body, a rotating mechanism and a heating mechanism, the rotating mechanism comprises a cover body, an air cylinder and two clamp assemblies, the cover body is fixedly connected to the inner wall of the bottom of the box body, a driving motor is fixedly connected in the cover body, and the air cylinder is fixedly connected with the two clamp assemblies. A driving shaft is fixedly connected to an output shaft of the driving motor, a driving bevel gear is fixedly connected to one end of the driving shaft, a rotating shaft is rotationally connected between the cover body and the box body, and a driven bevel gear fixedly sleeves the outer side of the rotating shaft. The crankshaft heat treatment device is reasonable in structural design, crankshafts with different lengths and widths can be conveniently and rapidly clamped and fixed, the use effect is greatly improved, meanwhile, during heat treatment, the clamped crankshafts can be conveniently rotated, the heating uniformity and comprehensiveness of the crankshafts are improved, the crankshaft heat treatment effect is further improved, and reliability is high.

Description

Technical Field

[0001] The utility model relates to the technical field of crankshaft processing, in particular to a crankshaft heat treatment fixture. Background Art

[0002] The crankshaft is the most important component in the engine. It bears the force transmitted from the connecting rod, and converts it into torque, which is output through the crankshaft and drives other accessories on the engine. The crankshaft is subjected to the combined effects of the centrifugal force of the rotating mass, the periodically changing gas inertia force and the reciprocating inertia force, which makes the crankshaft subject to bending and torsional loads. Therefore, the crankshaft is required to have sufficient strength and rigidity, and the journal surface must be wear-resistant, work evenly and have good balance. In order to improve the overall strength of the crankshaft, multiple heat treatment processes are often required during its processing. After searching: A crankshaft heat treatment fixture with the authorization publication number CN219195074U belongs to the field of machinery. It solves the problems of complex fixing methods and inconvenient transportation of existing crankshaft heat treatment fixtures. The crankshaft heat treatment fixture comprises a frame body and a plurality of crankshafts, wherein the frame body comprises a bottom surface and columns arranged at each diagonal corner of the bottom surface, a second plane is provided above the bottom surface, the bottom surface and both side surfaces of the second plane have side walls extending upward, the upper end surfaces of the side walls are uniformly arrayed with a plurality of arc-shaped grooves 1, the plurality of crankshafts have a front end shaft and a rear end shaft, the front end shaft and the rear end shaft respectively abut against the arc-shaped grooves of the two side walls, a clamping strip is also installed above the crankshaft, and the lower end surface of the clamping strip has a plurality of arc-shaped grooves 2 in a uniform array corresponding to the arc-shaped grooves 1.

[0003] However, the above-mentioned crankshaft heat treatment fixture still has some shortcomings. The crankshaft is statically clamped and fixed between two arc-shaped grooves, which is inconvenient to rotate. During the crankshaft heat treatment, the crankshaft is prone to uneven heating, which affects the effect of the crankshaft heat treatment. In addition, the crankshaft needs to be clamped by screws and clamping strips during clamping, which makes the clamping and fixing more troublesome and inconvenient. Therefore, we propose a crankshaft heat treatment fixture to solve the above problems. Utility Model Content

[0004] The utility model aims to solve the above-mentioned shortcomings and proposes a crankshaft heat treatment fixture.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A crankshaft heat treatment fixture comprises a box body, a rotating mechanism and a heating mechanism, the rotating mechanism comprises a cover body, a cylinder and two fixture assemblies, the cover body is fixedly connected to the bottom inner wall of the box body, a driving motor is fixedly connected to the cover body, a driving shaft is fixedly connected to the output shaft of the driving motor, one end of the driving shaft is fixedly connected to a driving bevel gear, a rotating shaft is rotatably connected between the cover body and the box body, a driven bevel gear is provided on the outer fixed sleeve of the rotating shaft, the driving bevel gear is meshed with the driven bevel gear, the lower fixture assembly is arranged at the top end of the rotating shaft, a mounting plate is fixedly connected to the output shaft of the cylinder, a rotating shaft is rotatably provided at the bottom of the mounting plate, and the upper fixture assembly is arranged at the bottom end of the rotating shaft.

[0007] Preferably, the clamp assembly includes mounting plates, two mounting plates are respectively fixedly connected to the rotating shaft and the rotating shaft, connecting plates are fixedly connected to the outer sides of the mounting plates, a plurality of slots are opened on the top of the connecting plates, and magnets are fixedly connected in the slots.

[0008] Preferably, the rotating shaft is rotatably arranged at the bottom of the mounting plate via a bearing.

[0009] Preferably, the heating mechanism includes two heating plates and a hot air blower, the two heating plates are fixedly connected to the inner walls on both sides of the box, the hot air blower is fixedly connected to the bottom of one side of the box, the top of the hot air blower is fixedly connected to an air inlet pipe, and the top end of the air inlet pipe is detachably fixedly connected to a filter head.

[0010] Preferably, a threaded tube is provided on the outer threaded sleeve of the air inlet pipe, and the filter head is fixedly connected to the top end of the threaded tube.

[0011] Preferably, the heating mechanism further comprises an air outlet pipe, and the air outlet pipe is fixedly connected to the top of the box body.

[0012] Preferably, the front side of the box body is rotatably connected to two doors via hinges.

[0013] Preferably, the front sides of the two door panels are fixedly connected with heat-resistant transparent glass.

[0014] In the utility model, the crankshaft heat treatment fixture is inserted into the corresponding slot provided by the lower connecting plate according to the width of the crankshaft, so that the two crankshafts do not contact and interfere with each other, and the purpose of adsorption and fixation is achieved through the magnet below, and then the cylinder is started according to the length of the crankshaft, and the cylinder drives the installation plate and the upper connecting plate to move downward, so that the top ends of multiple crankshafts are clamped in the slot provided by the upper connecting plate, and the top ends of the crankshafts are adsorbed and fixed by the magnet above, so that the crankshaft can be firmly clamped and fixed between the two connecting plates, and the spacing between the two connecting plates can be adjusted, so that the crankshaft of corresponding length can be installed between the two connecting plates;

[0015] In the utility model, the crankshaft heat treatment fixture described can heat the box body through the heating plate, so as to facilitate the heat treatment of the crankshaft. At the same time, the hot air blower can heat the external air after filtering it through the filter head, and then blow the heated air into the box body. Under the hot air, it can ensure that multiple crankshafts are heated more evenly and comprehensively, thereby improving the effect of the heat treatment of the crankshafts. At the same time, the driving motor drives the rotation of the driving shaft and the active bevel gear, and the active bevel gear drives the rotation of the driven bevel gear and the rotating shaft. The rotating shaft drives the rotation of the two connecting plates, multiple crankshafts and the rotating shaft. Under the dual effects of the rotation of the crankshaft and the blowing of hot air, the crankshaft can be heated more evenly and comprehensively, thereby further improving the effect of the heat treatment of the crankshaft.

[0016] The utility model has a reasonable structural design, which is convenient for quickly clamping and fixing crankshafts of different lengths and widths, greatly improving the use effect. At the same time, during heat treatment, it is beneficial to rotate the clamped crankshaft, improves the uniformity and comprehensiveness of the crankshaft heating, thereby improving the effect of the crankshaft heat treatment and having high reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a structural schematic diagram of a crankshaft heat treatment fixture proposed by the utility model;

[0018] Figure 2 A cross-sectional view of a crankshaft heat treatment fixture proposed by the utility model;

[0019] Figure 3 for Figure 2 The structural diagram of part A in the figure;

[0020] Figure 4 The utility model is a schematic structural diagram of a fixture assembly of a crankshaft heat treatment fixture.

[0021] In the figure: 1. box body; 2. box door; 3. cylinder; 4. air outlet pipe; 5. heating plate; 6. cover body; 7. mounting plate; 8. connecting plate; 9. slot; 10. magnet; 11. mounting plate; 12. rotating shaft; 13. hot air blower; 14. air inlet pipe; 15. threaded pipe; 16. filter head; 17. driving motor; 18. driving bevel gear; 19. rotating shaft; 20. driven bevel gear; 21. driving shaft. DETAILED DESCRIPTION

[0022] 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 of the embodiments.

[0023] Reference Figure 1-4 A crankshaft heat treatment fixture comprises a housing 1, a rotating mechanism and a heating mechanism. The rotating mechanism comprises a cover 6, a cylinder 3 and two fixture assemblies. The cover 6 is fixedly connected to the bottom inner wall of the housing 1. A driving motor 17 is fixedly connected inside the cover 6. A driving shaft 21 is fixedly connected to the output shaft of the driving motor 17. One end of the driving shaft 21 is fixedly connected to a driving bevel gear 18. A rotating shaft 19 is rotatably connected between the cover 6 and the housing 1. A driven bevel gear 20 is fixedly sleeved on the outer side of the rotating shaft 19. The driving bevel gear 18 is meshed with the driven bevel gear 20. The lower The clamp assembly is arranged at the top end of the rotating shaft 19, the mounting plate 11 is fixedly connected to the output shaft of the cylinder 3, the rotating shaft 12 is rotatably arranged at the bottom of the mounting plate 11, and the upper clamp assembly is arranged at the bottom end of the rotating shaft 12. The driving motor 17 drives the rotation of the driving shaft 21 and the active bevel gear 18, the active bevel gear 18 drives the rotation of the driven bevel gear 20 and the rotating shaft 19, and the rotating shaft 19 drives the rotation of the two connecting plates 8, multiple crankshafts and the rotating shaft 12. The rotation of the crankshaft makes the crankshaft heated more evenly and comprehensively, thereby improving the effect of the heat treatment of the crankshaft.

[0024] In the utility model, the clamp assembly includes a mounting plate 7, and the two mounting plates 7 are fixedly connected to the rotating shaft 12 and the rotating shaft 19 respectively. The outer sides of the mounting plate 7 are fixedly connected with connecting plates 8. A plurality of slots 9 are provided on the top of the connecting plate 8. A magnet 10 is fixedly connected in the slot 9. According to the width of the crankshaft, the crankshaft is inserted into the corresponding slot 9 provided by the lower connecting plate 8, so that the two crankshafts do not contact or interfere with each other. The purpose of adsorption and fixation is achieved through the magnet 10 below. According to the length of the crankshaft, the cylinder 3 is started, and the cylinder 3 drives the mounting plate 11 and the upper connecting plate 8 to move downward, so that the top ends of multiple crankshafts are clamped in the slot 9 provided by the upper connecting plate 8, and the top ends of the crankshafts are adsorbed and fixed by the magnet 10 above, so that the crankshaft can be firmly clamped and fixed between the two connecting plates 8, and the spacing between the two connecting plates 8 can be adjusted so that the crankshaft of corresponding length can be installed between the two connecting plates 8.

[0025] In the present invention, the rotating shaft 12 is rotatably arranged at the bottom of the mounting plate 11 through a bearing, so as to facilitate supporting the rotating shaft 12 and make its rotation more stable and smooth.

[0026] In the utility model, the heating mechanism includes two heating plates 5 and a hot air blower 13, the two heating plates 5 are fixedly connected to the inner walls on both sides of the box body 1, the hot air blower 13 is fixedly connected to the bottom of one side of the box body 1, the top of the hot air blower 13 is fixedly connected with an air inlet pipe 14, and the top of the air inlet pipe 14 is detachably fixedly connected with a filter head 16, the heating mechanism also includes an air outlet pipe 4, and the air outlet pipe 4 is fixedly connected to the top of the box body 1. The box body 1 can be heated through the heating plates 5, so as to facilitate the heat treatment of the crankshaft. At the same time, the hot air blower 13 is started, and the hot air blower 13 can heat the external air after filtering it through the filter head 16, and then blow the heated air into the box body 1. Under the hot air, it can be ensured that multiple crankshafts are heated more evenly and comprehensively, thereby improving the effect of the crankshaft heat treatment.

[0027] In the utility model, the outer thread sleeve of the air inlet pipe 14 is provided with a threaded tube 15, and the filter head 16 is fixedly connected to the top of the threaded tube 15, so that the filter head 16 can be easily disassembled, cleaned and replaced to ensure the filtering effect.

[0028] In the utility model, the front side of the box body 1 is rotatably connected to two box doors 2 through hinges, and the front sides of the two box doors 2 are fixedly connected to heat-resistant transparent glass to facilitate driving the crankshaft.

[0029] In the utility model, when in use, first, according to the width of the crankshaft, the crankshaft is inserted into the corresponding slot 9 provided in the lower connecting plate 8, so that the two crankshafts do not contact and interfere with each other, and the purpose of adsorption and fixation is achieved through the magnet 10 below, and then according to the length of the crankshaft, the cylinder 3 is started, and the cylinder 3 drives the mounting plate 11 and the upper connecting plate 8 to move downward, so that the top ends of multiple crankshafts are clamped in the slot 9 provided in the upper connecting plate 8, and the top ends of the crankshafts are adsorbed and fixed by the magnet 10 above, so that the crankshaft can be firmly clamped and fixed between the two connecting plates 8, and the distance between the two connecting plates 8 can be adjusted so that the crankshaft of corresponding length can be installed between the two connecting plates 8, the box door 2 is closed, and the heating plate 5, the hot air blower 13 and the driving motor are started. 17. The heating plate 5 can be used to heat the inside of the housing 1, thereby facilitating heat treatment of the crankshaft. At the same time, the hot air blower 13 is started. The hot air blower 13 can heat the outside air after filtering it through the filter head 16, and then blow the heated air into the housing 1. Under the hot air, it can ensure that multiple crankshafts are heated more evenly and comprehensively, thereby improving the effect of heat treatment of the crankshafts. At the same time, the driving motor 17 drives the rotation of the driving shaft 21 and the active bevel gear 18, and the active bevel gear 18 drives the rotation of the driven bevel gear 20 and the rotating shaft 19. The rotating shaft 19 drives the rotation of the two connecting plates 8, multiple crankshafts and the rotating shaft 12. Under the dual effects of the rotation of the crankshaft and the blowing of hot air, the crankshaft can be heated more evenly and comprehensively, thereby further improving the effect of heat treatment of the crankshaft.

[0030] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A crankshaft heat treatment fixture, characterized in that: The invention comprises a housing (1), a rotating mechanism and a heating mechanism, wherein the rotating mechanism comprises a cover (6), a cylinder (3) and two clamp assemblies, wherein the cover (6) is fixedly connected to the inner wall of the bottom of the housing (1), a driving motor (17) is fixedly connected inside the cover (6), a driving shaft (21) is fixedly connected to the output shaft of the driving motor (17), one end of the driving shaft (21) is fixedly connected to a driving bevel gear (18), a rotating shaft (19) is rotatably connected between the cover (6) and the housing (1), a driven bevel gear (20) is provided on the outer fixed sleeve of the rotating shaft (19), the driving bevel gear (18) meshes with the driven bevel gear (20), a lower clamp assembly is arranged at the top end of the rotating shaft (19), a mounting plate (11) is fixedly connected to the output shaft of the cylinder (3), a rotating shaft (12) is rotatably provided at the bottom of the mounting plate (11), and an upper clamp assembly is arranged at the bottom end of the rotating shaft (12).

2. A crankshaft heat treatment fixture according to claim 1, characterized in that: The clamp assembly comprises a mounting plate (7), wherein two mounting plates (7) are respectively fixedly connected to a rotating shaft (12) and a rotating shaft (19), and connecting plates (8) are fixedly connected to the outer sides of the mounting plates (7). A plurality of slots (9) are formed on the top of the connecting plates (8), and magnets (10) are fixedly connected in the slots (9).

3. A crankshaft heat treatment fixture according to claim 1, characterized in that: The rotating shaft (12) is rotatably arranged at the bottom of the mounting plate (11) via a bearing.

4. A crankshaft heat treatment fixture according to claim 1, characterized in that: The heating mechanism comprises two heating plates (5) and a hot air blower (13); the two heating plates (5) are fixedly connected to the inner walls on both sides of the box body (1); the hot air blower (13) is fixedly connected to the bottom of one side of the box body (1); the top of the hot air blower (13) is fixedly connected to an air intake pipe (14); the top of the air intake pipe (14) is detachably fixedly connected to a filter head (16).

5. A crankshaft heat treatment fixture according to claim 4, characterized in that: The outer threaded sleeve of the air inlet pipe (14) is provided with a threaded pipe (15), and the filter head (16) is fixedly connected to the top end of the threaded pipe (15).

6. A crankshaft heat treatment fixture according to claim 1, characterized in that: The heating mechanism further comprises an air outlet pipe (4), wherein the air outlet pipe (4) is fixedly connected to the top of the box body (1).

7. The crankshaft heat treatment fixture according to claim 1, characterized in that: The front side of the box body (1) is rotatably connected to two box doors (2) via hinges.

8. A crankshaft heat treatment fixture according to claim 7, characterized in that: Heat-resistant transparent glass is fixedly connected to the front sides of the two cabinet doors (2).

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