Clamp storage and switching structure

Abstract

The utility model relates to the field of automobile production and processing, in particular to a clamp storage and switching structure which comprises a sliding rail and a tray, the tray is connected to the sliding rail in a sliding mode, a motor is arranged on the tray, the motor is connected with a speed reducer, the speed reducer is connected with a power gear, a rack is arranged on the sliding rail and meshed with the power gear, and a gear shaft is arranged on one side of the power gear. An oil cavity is formed in the gear shaft, an oil seal is sealed on the top of the oil cavity, the speed reducer is connected with an installation plate, the oil seal is fixed on the installation plate and communicated with the oil cavity, an oil hole is formed in the gear shaft and communicated with the oil cavity, and an oil channel is formed in the oil coating gear. The oil seal is further communicated with an oil pipe, and the oil pipe is communicated with the oil hopper. According to the utility model, the problem that a rack structure adopted in a clamp storage and switching system is difficult to lubricate is solved.

Description

Technical Field

[0001] The utility model relates to the field of automobile production and processing, in particular to a fixture storage and switching structure. Background Art

[0002] At present, in the processing of automobile doors, car bodies and other parts, in order to meet the processing of multiple models and improve efficiency, the applicant has developed a multi-model co-production system, which sets up multiple storage locations in the production line, each of which is dedicated to storing special fixtures for the corresponding model, so as to achieve rapid switching between different models of products. When it is necessary to process parts of a certain model, the corresponding fixture is transported from the storage location to the processing location through the slide rail. This transportation process adopts a combination of a pallet and a slide rail, in which the pallet carries the fixture and moves along the slide rail, and the movement of the pallet is achieved by a gear rack mechanism. However, in actual use, the applicant found that the maintenance of the long rack built along the slide rail faces great challenges: because the rack is set on the inner side of the slide rail, it becomes inconvenient and difficult to lubricate it (such as oiling), and the rack is long, and the workload of oiling is also large. If the rack is poorly lubricated, the transmission efficiency will decrease and the wear will accelerate, which will not only affect the sliding smoothness of the pallet, but also shorten the service life of the entire conveying system, increase maintenance costs, and even affect the stable operation of the production line. Utility Model Content

[0003] The utility model aims to provide a fixture storage and switching structure to solve the problem that the lubrication work of the rack structure used in the fixture storage and switching system is difficult.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] The fixture storage and switching structure includes a slide rail and a tray. The tray is slidably connected to the slide rail. A motor is installed at the bottom of the tray. The motor is connected to a reducer. The reducer is connected to a power gear. A rack is axially installed on the slide rail. The rack is meshed with one side of the power gear. A gear shaft is provided on one side of the power gear. An oiled gear is rotatably connected to the gear shaft. The oiled gear is meshed with the other side of the power gear. An oil chamber is formed in the upper hollow interior of the gear shaft. An oil seal is fixed on the top of the oil chamber. The reducer is connected to a mounting plate. The oil seal is fixed on the mounting plate. The oil seal is connected to the oil chamber. Oil holes are opened circumferentially on the gear shaft. The oil holes are connected to the oil chamber. An oil channel is opened in the oiled gear. One end of the oil channel extends to the inside of the oiled gear and can be connected with the oil hole. The other end of the oil channel extends to the tooth groove of the oiled gear. The oil seal is also connected with an oil pipe. The oil pipe extends to the outside of the tray and is connected with an oil hopper installed on the side of the tray.

[0006] Preferably, as an improvement, a pallet positioning cylinder is fixed on the pallet, the pallet positioning cylinder is connected to the pallet positioning pin, two positioning wheels are rotatably provided on the slide rail, a positioning space for inserting the pallet positioning pin is formed between the two positioning wheels, and the positioning wheel can be rotatably connected to the pallet positioning pin.

[0007] Preferably, as an improvement, a fixture positioning cylinder is provided on the pallet, and the fixture positioning cylinder is connected to a fixture positioning pin.

[0008] Preferably, as an improvement, a supporting guide wheel for supporting the bottom of the clamp is rotatably provided on the side of the tray, and a limiting wheel capable of rolling along the side of the clamp is rotatably provided on one side of the supporting guide wheel.

[0009] Preferably, as an improvement, it also includes a controller, a switch touch plate is fixed on one side of the tray, a processing position deceleration switch and a processing position arrival switch are arranged on the side of the end of the slide rail away from the storage position, and a storage position deceleration switch and a storage position arrival switch are arranged on the side of the end of the slide rail located at the storage position, the processing position deceleration switch, the processing position arrival switch, the storage position deceleration switch and the storage position arrival switch are all swingingly set and are all set on the sliding path of the switch touch plate and can be driven to swing by the switch touch plate, the processing position deceleration switch, the processing position arrival switch, the storage position deceleration switch and the storage position arrival switch are all electrically connected to the controller, and the controller is electrically connected to the motor.

[0010] Preferably, as an improvement, a positioning pin seat is provided at one end of the slide rail away from the storage position, a positioning pin for maintenance is inserted into the positioning pin seat, a positioning hole plate is installed on the pallet, a positioning seat is provided on the slide rail, and a positioning hole that can be connected to the positioning hole plate is opened on the positioning seat.

[0011] The principles and beneficial effects of this scheme are:

[0012] 1. In this solution, the pallet is used to place the fixture. The power gear is driven to rotate by the motor and the reducer. The power gear rolls along the rack to drive the pallet and the fixture to slide on the slide rail, and the fixture is transported between the storage position and the processing position to realize the storage and switching of the fixture. The rotation of the power gear can drive the oiled gear meshing with it to rotate. The oil channel on the rotating oiled gear is connected to the oil hole on the gear shaft, so that the lubricating oil in the gear shaft flows along the oil channel to the tooth groove of the oiled gear. The lubricating oil is applied to the power gear and the rack through the meshing action. In this way, the power gear and the rack are oiled during the sliding process of the pallet and the fixture. The oiling is convenient. Compared with the separate oiling after shutdown, it does not take up production time, and it also saves the additional oiling process, which improves the processing efficiency.

[0013] 2. When the pallet does not move, the pallet positioning pin is inserted into the positioning space between the two positioning wheels through the pallet positioning cylinder to position the pallet. Compared with simply relying on the meshing of the power gear and the rack to complete the positioning of the pallet, the positioning effect of the pallet positioning pin can improve the positioning effect of the pallet. Two positioning wheels are used to enclose the positioning space for the pallet positioning pin to be inserted. Compared with direct opening, the pallet positioning pin rotates with the positioning wheel when inserted, which can reduce the friction of the pallet positioning pin and extend its service life.

[0014] 3. The support guide wheel is supported under the fixture, so that the fixture can be easily moved when entering the warehouse and transferring from the warehouse to the pallet. The fixture locating pin is used to insert into the locating hole configured on the fixture to fix the fixture on the pallet.

[0015] 4. This solution sets a processing position deceleration switch, a processing position in-place switch, a storage position deceleration switch and a storage position in-place switch on the slide rail, which can make the fixture slow down and move into place when it reaches the processing position and storage position, avoid emergency stops, and ensure the stability of the equipment. Specifically, when arriving at the processing position, when the switch touch plate triggers the processing position deceleration switch, the controller controls the motor to decelerate, and the motor decelerates slowly until the processing position in-place switch is triggered and stops; similarly, when arriving at the storage position, when the switch touch plate triggers the storage position deceleration switch, the controller controls the motor to decelerate, and the motor decelerates slowly until the storage position in-place switch is triggered and stops.

[0016] 5. This solution provides structures such as a locating pin seat, a locating pin for maintenance, a locating hole plate, and a locating seat. When the pallet is in daily operation, the locating pin for maintenance is inserted into the locating pin seat. During maintenance, the pallet is located at the processing position, the locating holes on the locating hole plate and the locating seat are aligned, and the locating pin for maintenance is inserted into the locating hole plate and the locating hole to achieve the positioning of the pallet. This can prevent the maintenance personnel from operating the motor incorrectly during the maintenance process and causing the pallet to move. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of an embodiment of the utility model.

[0018] Figure 2 for Figure 1 Enlarged schematic diagram of part A.

[0019] Figure 3 It is a partial structural schematic diagram of an embodiment of the utility model.

[0020] Figure 4 It is a partial structural schematic diagram of an embodiment of the utility model.

[0021] Figure 5 for Figure 4 Schematic diagram of part of the structure. DETAILED DESCRIPTION

[0022] The following is further described in detail through specific implementation methods:

[0023] The figure marks in the drawings of the specification include: slide rail 1, pallet 2, fixture locating pin 21, pallet locating cylinder 22, pallet locating pin 23, positioning wheel 24, support guide wheel 25, limit wheel 26, motor 3, rack 30, power gear 31, oil bucket 4, oil pipe 41, oiling gear 42, oil seal 43, oil hole 44, gear shaft 45, positioning hole plate 5, positioning seat 51, maintenance locating pin 52, locating pin seat 53, processing position in place switch 6, processing position deceleration switch 61, switch touch plate 62.

[0024] Example:

[0025] like Figure 1 , Figure 2 , Figure 4 and Figure 5 As shown, the fixture storage and switching structure includes a slide rail 1, a tray 2 and a controller. The tray 2 is slidably connected to the slide rail 1. Specifically, the two sides of the bottom of the tray 2 are held on the two sides of the slide rail 1 by pulleys, and the sliding connection between the tray 2 and the slide rail 1 is achieved by the pulleys rolling on the slide rail 1. A motor 3 is installed at the bottom of the tray 2 by bolts, and the output shaft of the motor 3 is connected to a reducer, and the output shaft of the reducer is connected to a power gear 31. A rack 30 is axially installed on the slide rail 1 by bolts, and the rack 30 is meshed on the left side of the power gear 31. A mounting plate is bolted to the bottom of the reducer, and an oil seal 43 is bolted to the mounting plate. A gear shaft 45 is fixedly connected to the bottom of the oil seal 43, and an oiled gear 42 is rotatably connected to the gear shaft 45, and the oiled gear 42 is meshed on the right side of the power gear 31. The upper part of the gear shaft 45 is hollow inside to form an oil cavity, the oil seal 43 is connected to the oil cavity, the gear shaft 45 is circumferentially provided with oil holes 44, the oil holes 44 are connected to the oil cavity, an oil passage is provided inside the oiled gear 42, one end of the oil passage extends to the inside of the oiled gear 42 and can be connected to the oil hole 44, and the other end of the oil passage extends to the tooth groove of the oiled gear 42. The oil seal 43 is also connected to an oil pipe 41, which extends outside the tray 2 and is connected to an oil hopper 4 bolted to the side of the tray 2.

[0026] A pallet positioning cylinder 22 is bolted to the pallet 2, and the pallet positioning cylinder 22 is connected to the pallet positioning pin 23. Two positioning wheels 24 are rotatably installed on the slide rail 1, and a positioning space for inserting the pallet positioning pin 23 is formed between the two positioning wheels 24. Both positioning wheels 24 can be rotatably connected to the pallet positioning pin 23. A fixture positioning cylinder is also bolted to the pallet 2. In this embodiment, there are two fixture positioning cylinders. The two fixture positioning cylinders are installed on the diagonal of the pallet 2, and the two fixture positioning cylinders are connected to the fixture positioning pin 21. A row of support guide wheels 25 for supporting the bottom of the fixture are rotatably installed on the side of the pallet 2. The support guide wheels 25 are vertically arranged, and a limiting wheel 26 that can roll along the side of the fixture is rotatably installed on one side of each support guide wheel 25. The limiting wheel 26 is horizontally arranged.

[0027] A locating pin seat 53 is bolted to one end of the slide rail 1 away from the storage position, and a maintenance locating pin 52 is inserted into the locating pin seat 53; a locating hole plate 5 is bolted to the tray 2; a locating seat 51 is bolted to the slide rail 1, and a locating hole that can be connected to the locating hole plate 5 is opened on the locating seat 51.

[0028] Combination Figure 3 As shown, a switch touch plate 62 is bolted to one side of the tray 2, a processing position deceleration switch 61 and a processing position in-position switch 6 are installed on the side of the end of the slide rail 1 away from the storage position, and a storage position deceleration switch and a storage position in-position switch (not shown in the figure) are installed on the side of the end of the slide rail 1 located at the storage position, the processing position deceleration switch 61, the processing position in-position switch 6, the storage position deceleration switch and the storage position in-position switch are all swingably set and are all set on the sliding path of the switch touch plate 62 and can be driven to swing by the switch touch plate 62, the processing position deceleration switch 61, the processing position in-position switch 6, the storage position deceleration switch and the storage position in-position switch are all electrically connected to the controller, and the controller is electrically connected to the motor 3.

[0029] The working principle of this scheme is:

[0030] The fixture is fixed on the pallet 2, and the pallet 2 slides along the slide rail 1 to transport the fixture between the processing position and the storage position to achieve storage and switching of the fixture. In this embodiment, the front end of the slide rail 1 is the processing position, and multiple storage positions are configured on both sides of the rear end of the slide rail 1 (not shown in the figure).

[0031] The fixture is fixed as follows: after the fixture is placed on the tray 2, the fixture is mounted on the support guide wheel 25, the limit wheel 26 limits the position of both sides of the fixture, and the fixture positioning cylinder drives the fixture positioning pin 21 to be inserted into the positioning hole on the fixture to achieve fixture fixation.

[0032] The sliding of the tray 2 is specifically as follows: the motor 3 and the reducer drive the power gear 31 to rotate, and the power gear 31 rolls along the rack 30, driving the tray 2 to slide on the slide rail 1. Taking reaching the processing position as an example, when it is about to reach the working position, the switch touch plate 62 on the tray 2 drives the processing position deceleration switch 61 to swing, and the processing position deceleration switch 61 is triggered. The processing position deceleration switch 61 sends a signal to the controller, and the controller controls the motor 3 to decelerate so that the tray 2 moves slowly until the tray 2 runs to the switch touch plate 62 to drive the processing position in place switch 6 to swing, and the processing position in place switch 6 is triggered. The processing position in place switch 6 sends a signal to the controller, and the controller controls the motor 3 to stop moving, and the tray 2 and the fixture reach the processing position. After the tray 2 and the fixture are in place, the tray positioning cylinder 22 drives the tray positioning pin 23 to insert between the two positioning wheels 24 to lock the tray 2, and the workpiece on the fixture can be processed at this time.

[0033] Similarly, when the fixture needs to be stored in the storage location, the tray 2 drives the fixture to slide to the storage location. When it is about to reach the storage location, the switch touch plate 62 triggers the storage location deceleration switch, and the tray 2 decelerates until the switch touch plate 62 triggers the storage location arrival switch and the tray 2 stops running. At this time, the fixture is exactly at the storage location. The fixture positioning pin 21 is released to release the fixture. At this time, the fixture can be pulled into the storage location by the additional traction mechanism, thereby realizing the storage of the fixture.

[0034] The specific method of oiling the rack 30 and the power gear 31 is as follows: lubricating oil is added to the oil hopper 4, and the lubricating oil flows along the oil pipe 41 to the oil chamber in the oil seal 43 and the gear shaft 45. The oil hopper 4 is installed on the outside of the tray 2, and there is no need to extend into the tray 2 to add lubricating oil, which is more convenient to operate. During the sliding process of the tray 2, the rotation of the power gear 31 will drive the oiled gear 42 meshing with it to rotate, and the oil channel on the oiled gear 42 is aligned with the oil hole 44 on the gear shaft 45. The lubricating oil in the gear shaft 45 flows from the oil hole 44 to the oil channel, and then flows to the tooth groove of the oiled gear 42, and finally relies on the meshing action to be coated on the power gear 31 and the rack 30. The oiling method of this scheme is simple to operate, and the oiling can be completed without stopping the machine, which saves the extra oiling process, shortens the production cycle, and improves production efficiency.

[0035] The above is only an embodiment of the utility model, and the common knowledge such as the known specific technical solutions and / or characteristics in the solution is not described in detail here. It should be pointed out that for those skilled in the art, without departing from the technical solution of the utility model, several deformations and improvements can be made, which should also be regarded as the protection scope of the utility model, and these will not affect the effect of the implementation of the utility model and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. Fixture storage and switching structure, characterized by: The gear shaft is connected to the gear of the oil-coated gear and the gear box is connected to the gear box, and the gear box is connected to the gear box by the toothed guide pinion.

2. The fixture storage and switching structure according to claim 1, characterized in that: A pallet positioning cylinder is fixed on the pallet, the pallet positioning cylinder is connected to the pallet positioning pin, two positioning wheels are rotatably arranged on the slide rail, a positioning space for inserting the pallet positioning pin is formed between the two positioning wheels, and the positioning wheel can be rotatably connected to the pallet positioning pin.

3. The fixture storage and switching structure according to claim 2, characterized in that: A fixture positioning cylinder is arranged on the pallet, and the fixture positioning cylinder is connected with a fixture positioning pin.

4. The fixture storage and switching structure according to claim 3, characterized in that: A supporting guide wheel for supporting the bottom of the fixture is rotatably arranged on the side of the tray, and a limiting wheel capable of rolling along the side of the fixture is rotatably arranged on one side of the supporting guide wheel.

5. The fixture storage and switching structure according to claim 4, characterized in that: It also includes a controller, a switch touch plate is fixed on one side of the tray, a processing position deceleration switch and a processing position in-position switch are arranged on the side of the end of the slide rail away from the storage position, and a storage position deceleration switch and a storage position in-position switch are arranged on the side of the end of the slide rail located at the storage position. The processing position deceleration switch, the processing position in-position switch, the storage position deceleration switch and the storage position in-position switch are all swingably arranged and are all arranged on the sliding path of the switch touch plate and can be driven to swing by the switch touch plate, the processing position deceleration switch, the processing position in-position switch, the storage position deceleration switch and the storage position in-position switch are all electrically connected to the controller, and the controller is electrically connected to the motor.

6. The fixture storage and switching structure according to claim 5, characterized in that: A positioning pin seat is arranged at one end of the slide rail away from the storage position, a positioning pin for maintenance is inserted on the positioning pin seat, a positioning hole plate is installed on the pallet, a positioning seat is arranged on the slide rail, and a positioning hole which can be connected with the positioning hole plate is opened on the positioning seat.

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