Crankshaft polishing device with detection function

Abstract

The utility model discloses a crankshaft polishing device with a detection function, which relates to the field of crankshaft polishing processing and comprises a feeding mechanism, a connecting rod is arranged on one side of the feeding mechanism, a gear is arranged at the end of the connecting rod, the connecting rod and the gear are connected through a one-way bearing, a rack is arranged at the top of a workbench, and the rack is connected with the feeding mechanism. The rack and the gear are meshed with each other, a metal rod is arranged on the side face of the driving mechanism, and a pulley is installed at the end of the metal rod. According to the crankshaft polishing machine, the feeding mechanism is arranged for automatic material changing, the feeding mechanism can ascend and descend for multiple times during working, on one hand, a crankshaft to be polished is transferred to the two driving mechanisms for polishing work, and on the other hand, the polished crankshaft is borne into the vacant clamping groove of the feeding mechanism again; therefore, automatic material changing in the feeding mechanism can be achieved before and after the crankshaft is polished, frequent feeding and discharging by workers are not needed in the feeding mechanism, the workload of the workers is reduced, and the working efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the field of crankshaft polishing processing, in particular to a crankshaft polishing device with a detection function. Background Art

[0002] The crankshaft is the main rotating part of the engine. After the connecting rod is installed, it can convert the up and down (reciprocating) motion of the connecting rod into a circular (rotating) motion. The processing process of the crankshaft mainly includes raw material preparation, turning, drilling, grinding, heat treatment and other steps.

[0003] In order to improve the accuracy of the crankshaft neck, it is usually necessary to grind the crankshaft surface. The tracking grinding method is generally used for grinding. The worker places the crankshaft on the lifting mechanism, and the lifting mechanism pushes the crankshaft parallel to the drive motor. Then the two sets of drive motors approach each other to clamp the crankshaft and drive it to rotate. The grinding belt actively approaches and fits the crankshaft, and rubs against the grinding belt under the high-speed rotation of the crankshaft, which can quickly polish the crankshaft.

[0004] Commonly used small crankshaft polishing equipment is usually loaded and unloaded manually. The motor is used to drive the crankshaft to rotate at high speed. The grinding belt actively adheres to the surface of the crankshaft to play the role of grinding and polishing. The crankshaft grinding speed is very fast, but a lot of working time will be wasted when loading and unloading the crankshaft. Frequent loading and unloading operations of workers not only increase labor intensity, but also lead to reduced production efficiency. Utility Model Content

[0005] Based on this, the purpose of the utility model is to provide a crankshaft polishing device with a detection function to solve the technical problems mentioned in the above background.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a crankshaft polishing device with a detection function, comprising a workbench, a grinding mechanism and a driving mechanism, a lifting assembly is installed inside the workbench, and a feeding mechanism is movably installed on the top of the lifting assembly, and a connecting rod is arranged on one side of the feeding mechanism, a gear is arranged at the end of the connecting rod, and the connecting rod and the gear are connected by a one-way bearing, a rack is arranged on the top of the workbench, and the rack and the gear are meshed with each other, a metal rod is arranged on the side of the driving mechanism, and a pulley is installed at the end of the metal rod.

[0007] By adopting the above technical solution and setting up an automatic material changing feeding mechanism, the feeding mechanism will rise and fall several times when working. First, the crankshaft to be polished is transferred to two sets of driving mechanisms for polishing, and second, the polished crankshaft is re-attached to the vacant card slot of the feeding mechanism, so that the crankshaft can be automatically changed in the feeding mechanism before and after polishing. The feeding mechanism is provided with six sets of card slots, and three sets of crankshafts can be installed in the feeding mechanism at intervals. That is, when one set of feeding mechanism is in use, the equipment can continuously polish three sets of crankshafts and the feeding mechanism can automatically change materials. There is no need for workers to frequently load and unload materials in the feeding mechanism, thereby reducing the workload of workers and improving work efficiency.

[0008] The utility model is further configured that the feeding mechanism includes two groups of chuck assemblies, and the sides of the chuck assemblies are provided with card slots, and the card slots are evenly distributed in six groups.

[0009] By adopting the above technical solution, six groups of slots are opened on the side of the chuck assembly, and the feeding mechanism installs three groups of slots at intervals during operation, and leaves three groups of slots empty. Then, when the feeding mechanism is working, the polished crankshaft can be transferred to the three groups of empty slots, thereby realizing automatic material change of the feeding mechanism.

[0010] The utility model is further configured that a limiting rod is arranged inside the chuck assembly, and the outer sleeve of the limiting rod is provided with a first spring, and the outer movable sleeve of the limiting rod is provided with a fixing rod, a bayonet is movably installed inside the chuck assembly, and a second spring is arranged on one side of the bayonet.

[0011] By adopting the above technical solution, by arranging the fixing rod, the first spring, the latch pin and the second spring, pressing the fixing rod can change the position state of the latch pin, thereby achieving the function that the slot can fix the crankshaft.

[0012] The utility model is further configured that an arc groove is opened on the side surface of the fixing rod, and the arc groove matches the end of the bayonet pin.

[0013] By adopting the above technical solution, an arc groove is provided on the side of the fixing rod, so that the bayonet can be engaged with the inside of the fixing rod, thereby releasing the restriction of the bayonet.

[0014] The utility model is further configured that the end of the fixing rod is provided with an arc surface, and the arc surface matches the pulley.

[0015] By adopting the above technical solution and arranging an arc surface at the end of the fixing rod, the pulley can better squeeze the fixing rod when the feeding mechanism rises and contacts the pulley.

[0016] The utility model is further configured that the lifting assembly and the feeding mechanism are movably installed by arranging a cylinder centering clamping mechanism, and the feeding mechanism is provided with a plurality of groups for alternate use.

[0017] By adopting the above technical solution and providing a cylinder centering clamping mechanism, the feeding mechanism can be movably installed on the top of the lifting assembly, thereby realizing rapid replacement of the feeding mechanism.

[0018] The utility model is further configured that the driving mechanism is symmetrically arranged in two groups, and the driving mechanism has the function of moving left and right and driving the crankshaft to rotate at high speed.

[0019] By adopting the above technical solution, two sets of driving mechanisms are set up, and the driving mechanism includes a servo motor that drives the crankshaft to rotate, and a moving device that drives the servo motor to move left and right, such as a cylinder, a screw rod, etc.

[0020] The utility model is further configured that the grinding mechanism comprises a grinding belt, and the grinding mechanism has the function of moving back and forth and fitting the surface of the crankshaft to grind it.

[0021] By adopting the above technical solution, the crankshaft surface can be polished by setting up a polishing mechanism, which includes multiple groups of polishing belts and a moving device that drives the polishing belts to move back and forth, such as a cylinder, a screw rod, etc.

[0022] The utility model is further configured that two groups of sensor mounting frames are arranged on the top of the workbench, and distance sensors are installed at the ends of the sensor mounting frames.

[0023] By adopting the above technical solution and setting a distance sensor, the distance between the distance sensor and the outer wall of the crankshaft can be measured, thereby determining the polishing diameter of the crankshaft and preventing the crankshaft from being over-polished.

[0024] In summary, the utility model mainly has the following beneficial effects:

[0025] 1. The utility model automatically changes materials by arranging a feeding mechanism. The feeding mechanism will rise and fall several times when working. First, the crankshaft to be polished is transferred to two sets of driving mechanisms for polishing, and second, the polished crankshaft is re-attached to the vacant card slot of the feeding mechanism, so that the crankshaft can be automatically changed in the feeding mechanism before and after polishing. The feeding mechanism is provided with six sets of card slots, and three sets of crankshafts can be installed in the feeding mechanism at intervals. That is, when one set of feeding mechanism is in use, the equipment can continuously polish three sets of crankshafts and the feeding mechanism automatically changes materials. There is no need for workers to frequently load and unload materials in the feeding mechanism, which reduces the workload of workers and improves work efficiency.

[0026] 2. The utility model sets up multiple groups of feeding mechanisms for alternate use. When one group of feeding mechanisms is working, workers can install three groups of crankshafts to be polished for another group of feeding mechanisms, so that the feeding mechanisms can load and unload crankshafts synchronously while polishing, thereby improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the structure of the utility model;

[0028] Figure 2 This is a schematic diagram of the feeding structure and workbench installation of the utility model;

[0029] Figure 3 This is a schematic diagram of the installation of the feeding mechanism and lifting assembly of the utility model;

[0030] Figure 4 This is a schematic diagram of the structure of the feeding mechanism of the utility model;

[0031] Figure 5 This is a schematic diagram of the structure of the chuck assembly of the utility model;

[0032] Figure 6 This is a schematic diagram of the structure of the chuck assembly of the utility model;

[0033] Figure 7 For the utility model Figure 6 Enlarged view of point B;

[0034] Figure 8 This is a schematic diagram of the structure of the chuck assembly of the utility model;

[0035] Fig. 9 For the utility model Figure 8 Enlarged view of point C;

[0036] Fig.10 This is a schematic diagram of the fixing rod structure of the utility model;

[0037] Fig.11 For the utility model Figure 1 Enlarged view of point A.

[0038] In the figure: 1. workbench; 2. grinding mechanism; 3. driving mechanism; 4. metal rod; 5. pulley; 6. lifting assembly; 7. cylinder centering clamping mechanism; 8. feeding mechanism; 9. connecting rod; 10. gear; 11. rack; 12. sensor mounting bracket; 13. distance sensor; 14. crankshaft; 801. chuck assembly; 802. slot; 803. limit rod; 804. first spring; 805. fixing rod; 806. bayonet pin; 807. second spring; 808. arc groove; 809. arc surface. DETAILED DESCRIPTION

[0039] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. The embodiments described below with reference to the drawings are exemplary and are only used to explain the utility model, and cannot be understood as limiting the utility model.

[0040] The following describes an embodiment of the utility model based on its overall structure.

[0041] Embodiment 1

[0042] A crankshaft polishing device with a detection function, such as Figure 1-11 As shown, it includes a workbench 1, a grinding mechanism 2 and a driving mechanism 3. A lifting component 6 is installed inside the workbench 1. The lifting component 6 is used to drive the feeding mechanism 8 to rise and fall, and the feeding mechanism 8 is movably installed on the top of the lifting component 6, and a connecting rod 9 is provided on one side of the feeding mechanism 8. A gear 10 is provided at the end of the connecting rod 9, and the connecting rod 9 and the gear 10 are connected by providing a one-way bearing. A rack 11 is provided on the top of the workbench 1, and the rack 11 and the gear 10 are meshed with each other. By providing the gear 10 and the rack 11 installed by the one-way bearing, the feeding mechanism 8 does not rotate when it descends, but can rotate a certain angle when it rises, thereby realizing the change of the position of the slot 802. A metal rod 4 is provided on the side of the driving mechanism 3, and a pulley 5 is installed at the end of the metal rod 4. By providing the pulley 5, the metal rod 4 can better squeeze the fixing rod 805.

[0043] See also Figure 4 - Figure 6 The feeding mechanism 8 includes two groups of chuck assemblies 801, and the sides of the chuck assemblies 801 are provided with card slots 802, and there are six groups of card slots 802 evenly distributed. By providing six groups of card slots 802 on the sides of the chuck assemblies 801, the feeding mechanism 8 installs three groups of card slots 802 at intervals during operation, and leaves three groups of card slots 802 vacant. Then, when the feeding mechanism 8 is working, the polished crankshaft 14 can be transferred to the three groups of vacant card slots 802, thereby realizing that the feeding mechanism 8 can automatically change materials.

[0044] See also Fig. 9 A limiting rod 803 is arranged inside the chuck assembly 801, and the outer sleeve of the limiting rod 803 is provided with a first spring 804, and the outer movable sleeve of the limiting rod 803 is provided with a fixing rod 805, and a locking pin 806 is movably installed inside the chuck assembly 801, and a second spring 807 is arranged on one side of the locking pin 806. By arranging the fixing rod 805, the first spring 804, the locking pin 806 and the second spring 807, pressing the fixing rod 805 can change the position state of the locking pin 806, so that the slot 802 can fix the crankshaft 14.

[0045] See also Fig.10 An arc groove 808 is provided on the side of the fixing rod 805, and the arc groove 808 matches the end of the bayonet 806. By providing the arc groove 808 on the side of the fixing rod 805, the bayonet 806 can be engaged into the interior of the fixing rod 805, thereby releasing the restriction of the bayonet 806.

[0046] See also Fig.10 The end of the fixed rod 805 is provided with an arc surface 809, and the arc surface 809 matches the pulley 5. By providing the arc surface 809 at the end of the fixed rod 805, when the feeding mechanism 8 rises and contacts with the pulley 5, the pulley 5 can better squeeze the fixed rod 805.

[0047] See also Figure 1 The driving mechanism 3 is symmetrically arranged in two groups. The driving mechanism 3 has the function of moving left and right and driving the crankshaft 14 to rotate at high speed. By setting two groups of driving mechanisms 3, the driving mechanism 3 includes a servo motor that drives the crankshaft 14 to rotate, and a moving device that drives the servo motor to move left and right, such as a cylinder, a screw, etc.

[0048] See also Figure 1 The grinding mechanism 2 includes a grinding belt, which has the function of moving back and forth and fitting the surface of the crankshaft 14 to grind it. By setting the grinding mechanism 2, the surface of the crankshaft 14 can be grinded. The grinding mechanism 2 includes multiple groups of grinding belts and a moving device that drives the grinding belts to move back and forth, such as a cylinder, a screw, etc.

[0049] See also Figure 1 Two sets of sensor mounting frames 12 are arranged on the top of the workbench 1, and distance sensors 13 are installed at the ends of the sensor mounting frames 12. By setting the distance sensors 13, the distance between the distance sensors 13 and the outer wall of the crankshaft 14 can be measured, so as to judge the polishing diameter of the crankshaft 14 and prevent the crankshaft 14 from being over-polished.

[0050] Embodiment 2

[0051] A crankshaft polishing device with a detection function, such as Figure 3 As shown, the lifting assembly 6 and the feeding mechanism 8 are movably installed by setting a cylinder centering clamping mechanism 7, and the feeding mechanism 8 is provided with multiple groups for alternating use. By setting the cylinder centering clamping mechanism 7, the feeding mechanism 8 is movably installed on the top of the lifting assembly 6, so that the feeding mechanism 8 can be quickly replaced. When one group of feeding mechanisms 8 is working, the worker can install three groups of crankshafts 14 to be polished for the other group of feeding mechanisms 8, so that the feeding mechanism 8 can load and unload the crankshaft 14 synchronously while polishing, thereby improving work efficiency.

[0052] The working principle of the utility model is as follows: the worker first installs the crankshaft 14 to be processed for the feeding mechanism 8, and manually presses the fixing rod 805 so that the fixing rod 805 compresses the first spring 804 and shrinks it into the interior of the chuck assembly 801, and then the arc groove 808 on the outer wall of the fixing rod 805 moves to the position of the end of the bayonet 806, so that the bayonet 806 is engaged into the arc groove 808 under the resetting action of the second spring 807. At this time, there is no limit of the bayonet 806 in the bayonet groove 802, and the crankshaft 14 can be installed. The worker installs three groups of crankshafts 14 at intervals.

[0053] After the lifting assembly 6 is started, the lifting assembly 6 is lifted and drives the feeding mechanism 8 to a position level with the two sets of driving mechanisms 3. Then the two sets of driving mechanisms 3 are moved closer to each other, driving the two sets of metal rods 4 closer to each other. The pulley 5 at the end of the metal rod 4 will squeeze the fixing rod 805 at the corresponding slot 802 position, thereby releasing the restriction of the bayonet 806 in the corresponding slot 802. At the same time, the two sets of driving mechanisms 3 will clamp and fix the ends of one set of crankshafts 14. Then the lifting assembly 6 is lowered and drives the feeding mechanism 8 to lower. During the lowering process of the feeding mechanism 8, the gear 10 is meshed with the rack 11. Because a one-way bearing is set between the gear 10 and the connecting rod 9, the gear 10 is located outside the connecting rod 9 and idles. The two sets of driving mechanisms 3 rotate at high speed to drive the crankshaft 14 to rotate. The grinding mechanism 2 is started to approach and fit the surface of the crankshaft 14. The surface of the crankshaft 14 is ground and polished. When the crankshaft 14 is polished, the two sets of driving mechanisms 3 stop working, and the lifting assembly 6 is lifted to drive the feeding mechanism 8 to a position horizontal with the two sets of driving mechanisms 3. During the lifting process of the feeding mechanism 8, the gear 10 and the rack 11 are meshed, and then the gear 10 drives the connecting rod 9 to rotate, thereby driving the feeding mechanism 8 to rotate a certain angle, so that another set of vacant slots 802 in the feeding mechanism 8 rotates to a position corresponding to the two sets of driving mechanisms 3. During this process, the arc surface 809 at the end of the fixing rod 805 will squeeze the pulley 5, so that the fixing rod 805 shrinks into the interior of the chuck assembly 801, so that the pin 806 contacts the restriction, and then the polished crankshaft 14 between the two sets of driving mechanisms 3 can be engaged in the slot 802, and then the two sets of driving mechanisms 3 are separated. According to the above-mentioned lifting assembly 6, multiple lifting operations are performed so that the three sets of crankshafts 14 in the feeding mechanism 8 are all polished, and the three sets of crankshafts 14 located inside the feeding mechanism 8 can be automatically loaded and unloaded.

[0054] When the crankshaft 14 is being polished, the distance sensor 13 can measure the distance between the distance sensor 13 and the outer wall of the crankshaft 14, thereby monitoring the diameter of the crankshaft 14, improving the polishing accuracy of the crankshaft 14, and ensuring that the crankshaft 14 is not over-polished, resulting in the diameter of the crankshaft 14 being less than the set value.

[0055] When one set of feeding mechanisms 8 is working, a worker can install the crankshaft 14 for another set of feeding mechanisms 8, and then the two sets of feeding mechanisms 8 are used alternately, so that the polishing work and loading and unloading of the crankshaft 14 can be carried out simultaneously, thereby improving work efficiency.

[0056] Although an embodiment of the utility model has been shown and described, this specific embodiment is merely an explanation of the utility model and is not a limitation of the utility model. The specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions and variations to the embodiments without creative contributions as needed without departing from the principles and purpose of the utility model. However, as long as they are within the scope of the claims of the utility model, they are protected by patent law.

Claims

1. A crankshaft polishing device with a detection function, comprising a workbench (1), a polishing mechanism (2) and a driving mechanism (3), characterized in that: A lifting assembly (6) is installed inside the workbench (1), and a feeding mechanism (8) is movably installed on the top of the lifting assembly (6), and a connecting rod (9) is arranged on one side of the feeding mechanism (8), and a gear (10) is arranged at the end of the connecting rod (9), and the connecting rod (9) and the gear (10) are connected by a one-way bearing, and a rack (11) is arranged on the top of the workbench (1), and the rack (11) and the gear (10) are meshed with each other, and a metal rod (4) is arranged on the side of the driving mechanism (3), and a pulley (5) is installed at the end of the metal rod (4).

2. The crankshaft polishing device with detection function according to claim 1, characterized in that: The feeding mechanism (8) comprises two groups of chuck assemblies (801), and the sides of the chuck assemblies (801) are provided with chuck grooves (802), and the chuck grooves (802) are evenly distributed in six groups.

3. The crankshaft polishing device with detection function according to claim 2, characterized in that: A limiting rod (803) is arranged inside the chuck assembly (801), and a first spring (804) is sleeved outside the limiting rod (803), and a fixing rod (805) is movably sleeved outside the limiting rod (803). A locking pin (806) is movably installed inside the chuck assembly (801), and a second spring (807) is arranged on one side of the locking pin (806).

4. The crankshaft polishing device with detection function according to claim 3, characterized in that: An arc-shaped groove (808) is provided on the side of the fixing rod (805), and the arc-shaped groove (808) matches the end of the bayonet (806).

5. The crankshaft polishing device with detection function according to claim 4, characterized in that: The end of the fixing rod (805) is provided with a curved surface (809), and the curved surface (809) matches the pulley (5).

6. The crankshaft polishing device with detection function according to claim 1, characterized in that: The lifting assembly (6) and the feeding mechanism (8) are movably installed by arranging a cylinder centering clamping mechanism (7), and the feeding mechanism (8) is provided with multiple groups for alternate use.

7. The crankshaft polishing device with detection function according to claim 1, characterized in that: The driving mechanism (3) is symmetrically arranged in two groups, and the driving mechanism (3) has the function of moving left and right and driving the crankshaft (14) to rotate at high speed.

8. The crankshaft polishing device with detection function according to claim 1, characterized in that: The grinding mechanism (2) comprises a grinding belt, and the grinding mechanism (2) has the function of moving forward and backward and fitting against the surface of the crankshaft (14) to grind it.

9. The crankshaft polishing device with detection function according to claim 1, characterized in that: Two groups of sensor mounting frames (12) are arranged on the top of the workbench (1), and distance sensors (13) are installed at the ends of the sensor mounting frames (12).

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