High-precision thicknessing machine

Abstract

The utility model discloses a high-precision thicknessing machine which comprises a rack and two lead screws vertically arranged on the two sides of the rack correspondingly. The two sides of the machine body assembly are installed on the two lead screws through threads, and the machine body assembly can ascend and descend under the rotation action of the lead screws; the base is arranged at the bottom of the rack and used for supporting the lower ends of the two lead screws; the synchronous transmission mechanism is connected to the lower ends of the two lead screws at the same time, and when one lead screw rotates, the other lead screw is driven by the synchronous transmission mechanism to achieve synchronous rotation; the synchronous transmission mechanism comprises a first plane thrust bearing, a deep groove ball bearing and a first bevel gear which are sequentially installed at the lower end of the lead screw. The second bevel gears are installed at the two ends of the transverse transmission rod, the second bevel gears are meshed with the first bevel gears, the two ends of the transverse transmission rod are further sleeved with second plane thrust bearings, and the second plane thrust bearings tend to move towards the second bevel gears through springs.

Description

Technical Field

[0001] The present application relates to the technical field of planers, and in particular to a high-precision planer. Background Art

[0002] The planer is a processing mechanism consisting of a horizontally parallel rotating planer shaft and a pressure roller, a liftable surface and a feeding device, which applies pressure to the cutting workpiece and performs the planing process.

[0003] In order to improve the lifting and lowering accuracy of the planer, the applicant disclosed a utility model patent with application number CN202320277863.8 on 2023-06-16. It sets a synchronous transmission mechanism between the two screw rods. The two screw rods rotate synchronously to enable the machine body assembly to be lifted and lowered smoothly. Combined with the planar thrust bearing, the force on the two screw rods can be evenly distributed, and the horizontality can be guaranteed while achieving lifting and lowering.

[0004] This method cannot meet the requirements for certain high-precision operations because there is still a gap of about 20 threads between the first bevel gear and the second bevel gear. The purpose of this application is to further improve the transmission fitting clearance based on this solution.

[0005] The above content is only used to assist in understanding the technical solution of this application, and does not mean that the above content is the closest prior art to this application. Summary of the Invention

[0006] Based on this, the present application provides a high-precision planer to solve one of the above technical problems.

[0007] The technical solution adopted by this application to solve its technical problems is: a high-precision planer, comprising: a frame, and two screw rods vertically arranged on both sides of the frame; a body assembly, both sides of which are installed on the two screw rods through threads, and can be raised and lowered under the rotation of the screw rods; a base, arranged at the bottom of the frame, for supporting the lower ends of the two screw rods; a synchronous transmission mechanism, which is simultaneously connected to the lower ends of the two screw rods, and when one of the screw rods rotates, it will drive the other screw rod to achieve synchronous rotation through the synchronous transmission mechanism; it is characterized in that the synchronous transmission mechanism includes: a first plane thrust bearing, a deep groove ball bearing, and a first bevel gear installed in sequence at the lower ends of the screw rods; and a transverse transmission rod and a second bevel gear installed at both ends thereof, the second bevel gear is meshed with the first bevel gear, and the two ends of the transverse transmission rod are also sleeved with a second plane thrust bearing, and the second plane thrust bearing provides a tendency to move toward the second bevel gear through a spring to push the second bevel gear to eliminate the meshing gap between the second bevel gear and the first bevel gear.

[0008] In some embodiments, the second bevel gear includes an integral shaft sleeve, the shaft sleeve is sleeved on the transverse transmission rod, and the second planar thrust bearing is kept in tight contact with the shaft sleeve.

[0009] In some embodiments, a positioning plate is provided on the base, a bearing mounting position is provided on the positioning plate, and the second planar thrust bearing is installed in the bearing mounting position.

[0010] In some embodiments, the positioning plate is detachably mounted on the base by screws.

[0011] In some embodiments, a support plate is provided on the base, and the spring is sleeved on the transverse transmission rod and placed between the support plate and the second planar thrust bearing.

[0012] In some embodiments, a placement groove for placing the transverse transmission rod is formed on the support plate.

[0013] In some embodiments, the upper end of one of the screw rods is connected to a rocker handle for driving the screw rod to rotate.

[0014] In some embodiments, the lower end of the screw rod is further connected to a lock nut for fixing the first bevel gear.

[0015] The beneficial effect of the present application is that the second planar thrust bearing can be pushed by the spring, thereby eliminating the meshing clearance between the second bevel gear and the first bevel gear in real time, and the fitting clearance between the two can be further reduced from 20 threads. Under the condition of precise assembly, it can reach 8 threads or even lower, thereby achieving high precision requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0017] Figure 1 It is a schematic diagram of the internal structure of this application.

[0018] Figure 2 This application Figure 1 A magnified schematic diagram of .

[0019] Figure 3 It is a three-dimensional schematic diagram of this application.

[0020] Figure 4 It is a schematic diagram of the bottom structure of this application.

[0021] Figure 5It is a schematic diagram of the synchronous transmission mechanism of this application.

[0022] Explanation of the accompanying figures: 1. Frame, 2. Screw, 3. Machine body assembly, 4. Base, 5. Synchronous transmission mechanism, 51. First plane thrust bearing, 52. Deep groove ball bearing, 53. First bevel gear, 54. Transverse transmission rod, 55. Second bevel gear, 551. Bushing, 56. Second plane thrust bearing, 6. Spring, 7. Positioning plate, 8. Bearing mounting position, 9. Support plate, 10. Placement groove, 11. Rocker handle, 12. Anti-loosening nut. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection of this application.

[0024] In the examples of this application, please refer to Figure 1-5 As shown, the high-precision planer mainly includes: a frame 1, and two screw rods 2 vertically arranged on both sides of the frame 1; a body assembly 3, both sides of which are installed on the two screw rods 2 through threads, and can be lifted and lowered under the rotation of the screw rods 2; a base 4, which is arranged at the bottom of the frame 1 and is used to support the lower ends of the two screw rods 2; a synchronous transmission mechanism 5, which is connected to the lower ends of the two screw rods 2 at the same time. When one of the screw rods 2 rotates, it will drive the other screw rod 2 to achieve synchronous rotation through the synchronous transmission mechanism 5; it is characterized in that the synchronous The transmission mechanism 5 includes: a first plane thrust bearing 51, a deep groove ball bearing 52, and a first bevel gear 53, which are sequentially installed at the lower end of the screw rod 2; and a transverse transmission rod 54 and second bevel gears 55 installed at both ends thereof. The second bevel gear 55 is engaged with the first bevel gear 53. The two ends of the transverse transmission rod 54 are also sleeved with second plane thrust bearings 56. The second plane thrust bearing 56 is provided with a tendency to move toward the second bevel gear 55 by a spring 6, so as to push the second bevel gear 55 to eliminate the meshing gap between the second bevel gear 55 and the first bevel gear 53.

[0025] Some preferred / improved embodiments based on the above embodiments will be described below. Any one of the following embodiments may be selected, or multiple embodiments may be selected and combined.

[0026] like Figure 1-2As shown, the second bevel gear 55 includes an integrated shaft sleeve 551, which is sleeved on the transverse transmission rod 54 to provide positioning and support for the second bevel gear 55. The second planar thrust bearing 56 is kept in close contact with the shaft sleeve 551 to reduce the meshing gap between the first bevel gear 53 and the second bevel gear 55, thereby improving the stability of the lifting and lowering of the body assembly 3 and making the planing accuracy higher.

[0027] Furthermore, a positioning plate 7 is provided on the base 4, and a bearing mounting position 8 is provided on the positioning plate 7. The second planar thrust bearing 56 is installed in the bearing mounting position 8. The second planar thrust bearing 56 reduces the friction during the rotation of the transverse transmission rod 54 and transmits the restoring force of the spring 6 to the second bevel gear 55, so that the second bevel gear 55 presses the first bevel gear 53, reducing the meshing clearance between the two.

[0028] Specifically, the positioning plate 7 is detachably mounted on the base 4 by screws, which facilitates the disassembly and assembly of the transverse transmission rod 54 .

[0029] Furthermore, a locking nut 12 for fixing the first bevel gear 53 is connected to the lower end of the screw rod 2 .

[0030] like Figure 4 As shown, a support plate 9 is provided on the base 4 , and the spring 6 is sleeved on the transverse transmission rod 54 and placed between the support plate 9 and the second planar thrust bearing 56 . The support plate 9 provides a limit and support for the installation of the spring 6 .

[0031] Furthermore, a placement groove 10 for placing the transverse transmission rod 54 is formed on the support plate 9 .

[0032] like Figure 3 As shown, the upper end of one of the screw rods 2 is connected to a crank handle 11 for driving the screw rod 2 to rotate. The synchronous transmission mechanism 5 is driven to operate by shaking the crank handle 11, thereby finally achieving stable lifting and lowering of the body assembly 3.

[0033] Thus far, various embodiments of the present application have been described in detail. To avoid obscuring the concept of the present application, some details well known in the art have not been described. Based on the above description, those skilled in the art will fully understand how to implement the technical solutions disclosed herein.

[0034] Finally, it should be noted that the above is only a preferred embodiment of the present application, and the aforementioned embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not drive the essence of the corresponding technical solutions away from the spirit and scope of the technical solutions of the various embodiments of the present application.

Claims

1. A high-precision planer, comprising: A frame, and two screw rods vertically arranged on both sides of the frame; The body assembly is mounted on two screw rods on both sides through threads and can be raised and lowered by the rotation of the screw rods; A base is provided at the bottom of the frame and is used to support the lower ends of the two screw rods; A synchronous transmission mechanism is connected to the lower ends of the two screw rods at the same time. When one of the screw rods rotates, the other screw rod will be driven by the synchronous transmission mechanism to achieve synchronous rotation; It is characterized by: The synchronous transmission mechanism comprises: A first plane thrust bearing, a deep groove ball bearing, and a first bevel gear are sequentially installed at the lower end of the screw rod; and a transverse transmission rod and second bevel gears are installed at both ends thereof, the second bevel gear is meshed with the first bevel gear, and second plane thrust bearings are also sleeved at both ends of the transverse transmission rod. The second plane thrust bearing provides a tendency to move toward the second bevel gear through a spring to push the second bevel gear to eliminate the meshing clearance between the second bevel gear and the first bevel gear.

2. A high-precision planer according to claim 1, characterized in that: The second bevel gear includes an integrated shaft sleeve, which is sleeved on the transverse transmission rod, and the second planar thrust bearing is kept in tight contact with the shaft sleeve.

3. A high-precision planer according to claim 1, characterized in that: A positioning plate is provided on the base, a bearing mounting position is provided on the positioning plate, and the second planar thrust bearing is installed in the bearing mounting position.

4. A high-precision planer according to claim 3, characterized in that: The positioning plate is detachably mounted on the base by screws.

5. The high-precision planer according to claim 1, characterized in that: A support plate is provided on the base, and the spring is sleeved on the transverse transmission rod and placed between the support plate and the second plane thrust bearing.

6. A high-precision planer according to claim 5, characterized in that: A placement groove for placing the transverse transmission rod is formed on the support plate.

7. The high-precision planer according to claim 1, characterized in that: The upper end of one of the screw rods is connected to a rocker handle for driving the screw rod to rotate.

8. The high-precision planer according to claim 1, characterized in that: The lower end of the screw rod is also connected to a lock nut for fixing the first bevel gear.

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