Box body shaft hole inner wall grinding device for gearbox machining

Abstract

The utility model belongs to the technical field of gearbox production, and discloses a gearbox machining box body shaft hole inner wall polishing device which comprises an operation table, a polishing machine and a fixing table are fixedly installed at the top of the operation table, a lead screw is arranged in the fixing table, a first bevel gear is fixedly arranged on the outer wall of the bottom of the lead screw in a sleeved mode, and a second bevel gear is fixedly arranged on the outer wall of the bottom of the lead screw in a sleeved mode. A disc is fixed to the bottom of the first bevel gear, a plurality of cleaning scraping strips are slidably mounted on the inner wall of the bottom of the fixing table, a plurality of arc-shaped grooves are formed in the outer wall of the disc, protruding blocks are fixedly mounted at the tops of the cleaning scraping strips correspondingly, and through the design that the protruding blocks are slidably connected with the arc-shaped grooves, the cleaning scraping strips can be cleaned. And the cleaning scraping strip moves along the inner wall of the bottom of the fixing table, residual impurity foam generated after polishing of the previous batch can be pushed to the middle, then the impurity foam falls off through a notch in the bottom of the fixing table, and cleaning work is completed.

Description

Technical Field

[0001] This utility model belongs to the field of gearbox manufacturing technology, specifically a grinding device for the inner wall of the shaft hole of a gearbox. Background Technology

[0002] As a key component in automobiles and other mechanical equipment, the machining quality of the inner wall of the gearbox housing shaft hole directly affects the performance and service life of the gearbox.

[0003] The patent website published a grinding device for the inner wall of shaft holes used in gearbox production and processing, with announcement number CN221390179U. It includes a clamping assembly for clamping a multi-stage gearbox and a grinding assembly for simultaneously grinding multiple shaft holes in the multi-stage gearbox. The grinding assembly mainly consists of a frame, an air pump, a vertical push rod, a grinding motor movable sleeve, a support tube, a rotating head, a grinding head, a drive pulley, and a transmission belt, which can remove the debris generated during the grinding process.

[0004] The aforementioned device performs grinding operations by carefully polishing the motor's movable sleeve, support tube, rotating head, and grinding head. It also integrates additional components such as an air pump and air pipe to achieve effective debris removal. However, this design requires two sets of mechanical systems to operate simultaneously, which undoubtedly increases the overall manufacturing cost of the device and also increases the complexity of manual operation. Therefore, it needs to be improved and optimized. Utility Model Content

[0005] To address the problems mentioned in the background art, this utility model provides a grinding device for the inner wall of the shaft hole in gearbox machining, which solves the problems of increased overall manufacturing cost of the device and increased complexity of manual operation.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a grinding device for the inner wall of the shaft hole in a gearbox, comprising an operating table, a grinding machine and a fixed platform fixedly mounted on the top of the operating table, a lead screw inside the fixed platform, a bevel gear fixedly sleeved on the bottom outer wall of the lead screw, a disc fixedly mounted on the bottom of the bevel gear, a plurality of cleaning scrapers slidably mounted on the bottom inner wall of the fixed platform, a plurality of arc-shaped grooves formed on the outer wall of the disc, a protrusion fixedly mounted on the top of each of the cleaning scrapers, and the protrusions respectively penetrating through the corresponding arc-shaped grooves and slidably connected thereto.

[0007] Preferably, the top of the fixed platform is provided with a plurality of rectangular slots, and clamping blocks are respectively hinged to the inner walls of the plurality of rectangular slots.

[0008] Preferably, the top of each of the clamping blocks is provided with a groove, and the grooves are designed in an inverted trapezoidal shape.

[0009] Preferably, a bracket is threaded onto the outer wall of the lead screw, and an I-shaped block is fixedly installed on the top of the bracket. One end of each of the clamping blocks extends into the groove of the I-shaped block and is movably connected to the I-shaped block.

[0010] Preferably, two rectangular blocks are fixedly installed on the outer wall of the fixed platform, and the two rectangular blocks are symmetrically distributed.

[0011] Preferably, rotating rods are rotatably mounted on the outer walls of the two rectangular blocks, and one end of each rotating rod extends into the fixed platform and is rotatably connected to the fixed platform.

[0012] Preferably, a knob and a second bevel gear are fixedly sleeved on the outer wall of each of the two rotating rods, and both second bevel gears mesh with the first bevel gear.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] This invention abandons the traditional method of relying on complex and costly cleaning components such as air pumps and air pipes. Instead, it adopts a mechanical interaction between a protrusion and an arc-shaped groove, directly converting the circular motion of the disc into the linear motion of the cleaning blade. In actual operation, the cleaning function can be started simultaneously during the material fixing stage before the grinding operation. As the disc rotates, the protrusion moves along the trajectory of the arc-shaped groove, driving the cleaning blade to move linearly along a predetermined path, effectively scraping away and collecting debris and impurities generated during the grinding process. This not only reduces the number of parts but also significantly reduces manufacturing costs and maintenance difficulty. By operating the same mechanical system, compared to the existing method of using two sets of mechanical systems, the overall manufacturing cost is greatly reduced, and the complexity of manual operation is reduced. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a partial front cross-sectional view of the present invention.

[0017] Figure 3 This is a schematic diagram of the internal structure of the fixing platform of this utility model;

[0018] Figure 4 This is an exploded structural diagram of the lead screw and fixed platform of this utility model;

[0019] Figure 5 This is an exploded structural diagram of the I-shaped block and the clamping block of this utility model;

[0020] Figure 6 This is an exploded structural diagram of the disc and cleaning scraper of this utility model.

[0021] In the diagram: 1. Operating table; 101. Grinding machine; 2. Fixed table; 201. Rectangular groove; 202. Rectangular block; 3. Lead screw; 4. I-shaped block; 5. Clamping block; 501. Groove; 6. Support; 7. Bevel gear one; 8. Disc; 801. Arc groove; 9. Cleaning scraper; 901. Protrusion; 10. Rotating rod; 1001. Knob; 11. Bevel gear two. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0023] like Figures 1 to 6 As shown, this utility model provides a grinding device for the inner wall of the shaft hole of a gearbox. It includes an operating table 1, a grinding machine 101 and a fixed table 2 fixedly installed on the top of the operating table 1, a lead screw 3 is provided inside the fixed table 2, a bevel gear 7 is fixedly sleeved on the bottom outer wall of the lead screw 3, a disc 8 is fixedly fixed at the bottom of the bevel gear 7, a plurality of cleaning scrapers 9 are slidably installed on the bottom inner wall of the fixed table 2, a plurality of arc grooves 801 are opened on the outer wall of the disc 8, and a protrusion 901 is fixedly installed on the top of each of the cleaning scrapers 9, and the protrusions 901 pass through the corresponding arc grooves 801 and are slidably connected to them.

[0024] The sliding connection between the protrusion 901 and the arc groove 801 transforms the circular motion of the disc 8 into the linear motion of the cleaning scraper 9. The cleaning scraper 9 moves along the bottom inner wall of the fixed platform 2, pushing the residual impurities from the previous batch of polishing, i.e., the powdery impurities produced after polishing, towards the center, and then falling through the groove at the bottom of the fixed platform 2 to complete the cleaning work.

[0025] like Figures 2 to 4 As shown, the top of the fixed platform 2 has several rectangular slots 201, and clamping blocks 5 are respectively hinged to the inner walls of the several rectangular slots 201.

[0026] The clamping block 5 is connected to the rectangular groove 201 by a hinge, so that the clamping block 5 can be flexibly adjusted according to the shaft hole of different sizes and shapes.

[0027] like Figures 4 to 5As shown, the top of several clamping blocks 5 is provided with grooves 501, and the grooves 501 are designed in an inverted trapezoidal shape. A bracket 6 is threaded on the outer wall of the lead screw 3, and an I-shaped block 4 is fixedly installed on the top of the bracket 6. One end of several clamping blocks 5 extends into the groove of the I-shaped block 4 and is movably connected to the I-shaped block 4.

[0028] By threading the bracket 6 onto the lead screw 3, the bracket 6 and the I-shaped block 4 can move up and down as the lead screw 3 rotates.

[0029] like Figures 1 to 3 As shown, two rectangular blocks 202 are fixedly installed on the outer wall of the fixed platform 2. The two rectangular blocks 202 are symmetrically distributed. Rotating rods 10 are rotatably installed on the outer walls of the two rectangular blocks 202 respectively. One end of each rotating rod 10 extends into the fixed platform 2 and is rotatably connected to the fixed platform 2. A knob 1001 and a bevel gear 11 are fixedly sleeved on the outer walls of the two rotating rods 10 respectively. Both bevel gears 11 mesh with bevel gear 7.

[0030] Rotating the knob 1001 drives the rotating rod 10 to rotate, which in turn drives the bevel gear 11 to rotate. Through the meshing of the bevel gear 11 with the bevel gear 7, the bevel gear 7 is driven to rotate, and the bevel gear 7 drives the lead screw 3 to rotate.

[0031] Working principle and usage process of this utility model:

[0032] First, place the material to be polished on the groove 501 of the clamping block 5. Then, rotate the knob 1001. The knob 1001 drives the rotating rod 10 to rotate. Through the meshing of the rotating rod 10 with the bevel gear 7, the bevel gear 7 is driven to rotate. The rotation of the bevel gear 7 further drives the rotation of the disc 8 and the lead screw 3. When the disc 8 rotates, the protrusion 901 slides in the arc groove 801 on the disc 8. According to the arc design of the arc groove 801, the circular motion of the disc 8 is converted into the linear motion of the cleaning scraper 9 moving towards and away from the axis. As the cleaning scraper 9 moves along the bottom inner wall of the fixed platform 2, it can remove the residue left after the previous batch of polishing on the fixed platform. Impurities and scum inside the platform 2 are pushed towards the center and then fall out through the slot at the bottom of the platform 2, thus completing the cleaning work inside the platform 2. At the same time, through the threaded connection between the lead screw 3 and the bracket 6, the rotation of the lead screw 3 drives the bracket 6 and the I-shaped block 4 to move horizontally in the vertical direction. The I-shaped block 4 is connected to several clamping blocks 5 through a movable connection. Therefore, when the I-shaped block 4 moves, it will drive the clamping blocks 5 to rotate around the hinge point between it and the rectangular slot 201. This action makes the material to be polished centrally clamped, preparing for the subsequent polishing work. After confirming that the material to be polished has been centrally clamped and fixed, the polishing machine 101 is started to perform the polishing work.

[0033] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A grinding device for the inner wall of the shaft hole in a gearbox, comprising an operating table (1), characterized in that: A polishing machine (101) and a fixed platform (2) are fixedly installed on the top of the operating table (1). A lead screw (3) is provided inside the fixed platform (2). A bevel gear (7) is fixedly sleeved on the bottom outer wall of the lead screw (3). A disc (8) is fixedly installed at the bottom of the bevel gear (7). Several cleaning scrapers (9) are slidably installed on the bottom inner wall of the fixed platform (2). Several arc grooves (801) are opened on the outer wall of the disc (8). A protrusion (901) is fixedly installed on the top of each of the cleaning scrapers (9). The protrusions (901) pass through the corresponding arc grooves (801) and are slidably connected to them.

2. The gearbox housing shaft hole inner wall grinding device according to claim 1, characterized in that: The top of the fixed platform (2) is provided with a number of rectangular slots (201), and clamping blocks (5) are respectively hinged to the inner walls of the rectangular slots (201).

3. The gearbox housing shaft hole inner wall grinding device according to claim 2, characterized in that: The top of each of the clamping blocks (5) is provided with a groove (501), and the grooves (501) are designed in an inverted trapezoidal shape.

4. The gearbox housing shaft hole inner wall grinding device according to claim 2, characterized in that: A bracket (6) is threaded onto the outer wall of the lead screw (3). An I-shaped block (4) is fixedly installed on the top of the bracket (6). One end of several clamping blocks (5) extends into the groove of the I-shaped block (4) and is movably connected to the I-shaped block (4).

5. The gearbox housing shaft hole inner wall grinding device according to claim 1, characterized in that: Two rectangular blocks (202) are fixedly installed on the outer wall of the fixed platform (2), and the two rectangular blocks (202) are symmetrically distributed.

6. The gearbox housing shaft hole inner wall grinding device according to claim 5, characterized in that: Rotating rods (10) are rotatably mounted on the outer walls of the two rectangular blocks (202), and one end of each of the two rotating rods (10) extends into the fixed platform (2) and is rotatably connected to the fixed platform (2).

7. The gearbox housing shaft hole inner wall grinding device according to claim 6, characterized in that: A knob (1001) and a bevel gear (11) are fixedly sleeved on the outer wall of the two rotating rods (10), and the two bevel gears (11) mesh with the bevel gear (7).

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