Auxiliary tool for cone assembly

Abstract

The utility model discloses an auxiliary tool for cone assembly, which relates to the technical field of assembly and comprises a cone seat and shaft retainers positioned on two sides of the cone seat, a plurality of cone grooves are arranged on the cone seat, cones are arranged in the cone grooves and are fixed by cone shafts, and the cone shafts are positioned by the shaft retainers on two sides of the cone seat. Due to the design of the tooth wheel grooves, the distance between the tooth wheels does not need to be adjusted, it can be guaranteed that the tooth wheel shaft penetrates through all the tooth wheels in the tool assembly at a time, displacement of the tooth wheels does not need to be worried about, and due to the design of the left shaft baffle and the right shaft baffle, the tooth wheel shaft is prevented from falling off in the moving process of the tooth wheel shaft and the tool assembly.

Description

Technical Field

[0001] This utility model relates to the field of assembly technology, and in particular to an auxiliary tooling for assembling rollers. Background Technology

[0002] Water meter counters have a complex structure and involve the most parts. In assembly, purely manual assembly is not only inefficient but also prone to misassembly, leaving potential quality problems. For example, gear shafts may not be installed into the shaft holes, and the 20 teeth of the digital wheel may be misaligned. In water meter counters, the 48 toothed wheel is one of the smallest parts and often requires the assistance of tweezers for assembly. However, the tweezers have smooth clamping surfaces, making it difficult to assemble in one go. The digit wheel and 48 toothed wheel used in photoelectric water meters are usually made of black material due to their working principle, which increases the visual difficulty of assembling the 48 toothed wheel. Its long and short teeth are easily confused, causing the digital wheel to jam.

[0003] In the prior art, a simple roller cone drill bit installation tool disclosed in patent publication number CN204152461U includes a main body adapted to the outer circumference of the drill barrel. A radial positioning rod for the drill bit is provided in the middle of the main body. The radial positioning rod for the drill bit is parallel to the center line of the drill barrel. A tool positioning rib is provided on each side of the radial positioning rod for the drill bit. The tool positioning rib is vertically fixed to the main body and arranged radially along the drill barrel. An axial positioning rod for the drill bit is provided at the end of the radial positioning rod for the drill bit that is close to its positioning. A positioning baffle is provided on the inner side of the axial positioning rod for the drill bit. This patent only installs one roller cone drill bit and cannot achieve the synchronous installation of multiple roller cones. Utility Model Content

[0004] The purpose of this invention is to solve the problem that existing toothed wheel installation technology cannot install multiple toothed wheels simultaneously. This invention sets up a toothed wheel seat to fix the toothed wheel on the toothed wheel seat, and then uses a limiting structure to allow multiple toothed wheels to be installed on the water meter counter, thus achieving simultaneous installation of multiple toothed wheels and improving installation efficiency.

[0005] A further objective of this invention is to address the issue of insufficient precision in the installation of existing toothed gears. This invention fixes the toothed gear to the gear shaft and uses shaft stops on both sides for limiting the position, resulting in more precise installation.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an auxiliary tooling for assembling rollers, comprising a roller seat and axle stops located on both sides of the roller seat, wherein a plurality of roller grooves are provided on the roller seat, the rollers are placed in the roller grooves, and the rollers are fixed together by roller shafts, and the axle stops on both sides of the roller seat position the roller shafts.

[0007] Preferably, the gear housing is provided with a Z-plane, a Y-plane, an X-plane, and an arc surface.

[0008] Preferably, it also includes a corresponding water meter counter, on which a Z-direction limiting plane, a Y-radial limiting plane, an X-radial limiting plane, and a cylindrical surface are provided.

[0009] Preferably, during installation, the Z-axis limiting plane, Y-radial limiting plane, X-radial limiting plane, and cylindrical surface on the gear seat are respectively aligned with the Z-axis limiting plane, Y-radial limiting plane, X-radial limiting plane, and cylindrical surface on the water meter counter.

[0010] As a preferred option, one end of the water meter counter is also provided with a toothed wheel shaft hole groove, so that the toothed wheel shaft can be inserted into the toothed wheel shaft hole groove during installation.

[0011] Preferably, stepped holes are provided on both sides of the gear seat, and the shaft stop is placed in the stepped holes.

[0012] Preferably, one end of the axle stop is a large cylinder and the other end is a small cylinder.

[0013] Preferably, in its natural state, the small cylinder protrudes at least 3 mm from the Y-radial plane, and during compression, the small cylinder can be completely submerged in the stepped hole.

[0014] Preferably, the axle stop is also provided with a spring and an end cap located at one end of the axle stop.

[0015] Preferably, the end cap is provided with a through groove.

[0016] Compared with the prior art, the beneficial effects of this utility model are: the operator can place all the gears at once without distinguishing the positional differences between the long and short teeth of the gears, thus eliminating the problem of the digital gears getting stuck due to misalignment of the long and short teeth.

[0017] The design of the toothed wheel groove in this utility model not only eliminates the need to adjust the toothed wheel spacing, but also ensures that the toothed wheel shaft passes through all the toothed wheels in this tooling assembly in one go, without worrying about toothed wheel displacement.

[0018] The left and right shaft stops of this utility model prevent the gear shaft from falling off during the movement of the tooling assembly.

[0019] The shaft stop of this utility model is designed with elastic reset, which not only facilitates the assembly of the gear shaft, but also makes the assembly and combination of this tooling and the counter easy and convenient. When removing or unloading this tooling, the shaft stop automatically and quickly resets, realizing the function of repeated auxiliary assembly.

[0020] The counter of this utility model features a three-directional limiting structure design, which ensures that the gear shaft and gear are installed quickly and accurately in one go without the need for subsequent adjustments. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the tooling of this utility model.

[0022] Figure 2 This is another schematic diagram of the tooling of this utility model.

[0023] Figure 3 This is a schematic diagram of the tooling of this utility model from another angle.

[0024] Figure 4 This is an assembly diagram of the present invention.

[0025] In the diagram: 1. Gear seat; 1-1. Gear groove; 1-2. Z-axis plane; 1-3. Y-axis radial plane; 1-4. X-axis radial plane; 1-5. Arc surface; 1-6. Stepped hole; 2. Shaft stop; 2-1. Small cylinder; 2-2. Large cylinder; 3. Spring; 4. End cap; 4-1. Through groove; 5. Water meter counter; 5-1. Gear shaft; 5-2. Gear; 5-3. Gear shaft hole groove; 5-4. Z-axis limiting plane; 5-5. Y-axis limiting plane; 5-6. X-axis limiting plane; 5-7. Cylindrical surface. Detailed Implementation

[0026] The technical solution of this utility model will be further described in detail below through specific embodiments and in conjunction with the accompanying drawings. The described embodiments are only some embodiments of this utility model, and not all embodiments.

[0027] Example: Refer to Figures 1 to 4 A tooling for assembling roller cones is disclosed. A roller cone holder 1 has several roller cone grooves 1-1, the size and shape of which are highly matched to the roller cones 5-2, stably accommodating them and providing precise positioning and support for subsequent assembly operations. Simultaneously, the roller cone holder 1 also has a Z-plane 1-2, a Y-radial plane 1-3, an X-radial plane 1-4, and an arc surface 1-5. These planar and curved surface structures play a crucial role in alignment and limiting during subsequent bonding with the water meter counter, ensuring the accuracy and stability of the entire assembly process.

[0028] The shaft stop 2 is located on both sides of the gear seat 1, with one end being a large cylinder 2-2 and the other end being a small cylinder 2-1. The large cylinder can fit tightly with the large hole end of the stepped hole 1-6 on both sides of the gear seat 1, playing a preliminary positioning and support role during assembly; while the small cylinder 2-1 protrudes at least 3 mm from the Y radial plane 1-3 in its natural state. This unique design provides key space and mechanical support for the temporary fixation of the gear shaft 5-1 and subsequent precise installation. When compressed, it can be completely submerged in the stepped hole 1-6, exhibiting good elasticity and adaptability to meet the needs of different assembly stages.

[0029] Spring 3 is placed at the large end of the stepped hole 1-6, behind the small cylinder 2-1 of the shaft stop 2. Its main function is to provide elastic support for the shaft stop 2, so that the small cylinder 2-1 can flexibly switch between protruding and submerged movements during the assembly process, thereby providing stable elastic force when temporarily fixing the gear shaft 5-1, ensuring that the gear shaft will not easily slip off before it is finally installed in place.

[0030] The large holes 1-6 on the stepped holes are used for fastening. Through the tight fit with the stepped holes, the spring 3 and the shaft stop 2 are stably fixed on the toothed wheel seat 1, preventing the components from loosening or shifting during the assembly process, and ensuring the stability and reliability of the entire auxiliary tooling structure.

[0031] The toothed gears 5-2 are placed in the toothed gear grooves 1-1 with the same orientation. The toothed gear shafts 5-1 pass through the center holes of the toothed gears in sequence to achieve connection and fixation between the toothed gears. With the assistance of auxiliary tooling, the toothed gear shafts 5-1 can be precisely interference-fitted into the water meter counter 5 to ensure stable operation and accurate transmission of the toothed gears within the water meter counter.

[0032] First, starting from one side of the gear carrier 1, align the small cylindrical end 2-1 of the axle stop 2 with the large hole end of the stepped hole 1-6 in the gear carrier 1. Slowly and steadily insert the axle stop 2 into the stepped hole 1-6 until the connecting plane of the small and large cylinders of the axle stop 2 is completely flush with the transition plane of the large and small holes in the stepped hole 1-6, thus achieving the initial positioning and installation of the axle stop 2 on that side. Next, insert the spring 3 into the large hole end of the stepped hole 1-6, ensuring that the spring is accurately positioned and without deviation. Then, tighten the end cap 4 on the large hole side of the stepped hole 1-6. Through the tightening action of the end cap 4, the spring 3 and the axle stop 2 are firmly fixed to the gear carrier 1. At this time, the spring is in a proper pre-compression state, providing elastic potential energy for the subsequent movement of the small cylindrical end 2-1. The installation steps for the axle stop 2 on the other side are exactly the same as the above process. Repeat the above operations to complete the installation of the axle stops on both sides.

[0033] After the shaft stop is installed, several roller cones 5-2 are sequentially placed into the roller cone grooves 1-1 on the roller cone seat 1, all facing the same direction. Due to the precise design matching between the roller cone grooves 1-1 and the roller cones 5-2, the roller cones should fit smoothly into the grooves under normal circumstances. However, if the roller cones 5-2 easily slip out of the grooves 1-1, this indicates a misalignment between the long and short teeth of the roller cones 5-2 and the grooves 1-1. In this case, the operator only needs to carefully adjust the angle of the roller cones 5-2, usually through small-amplitude rotation or oscillation, to perfectly match the shape of the long and short teeth with the groove shape, allowing the roller cones to lie flat within the grooves, thus preparing for subsequent shaft assembly.

[0034] After the gear 5-2 is stably positioned in the gear groove 1-1, take one end of the gear shaft 5-1 and align it with the small cylinder 2-1 at the other end. Apply appropriate pressure to press the small cylinder 2-1 downwards, overcoming the elastic force of the spring 3 and partially entering the stepped hole 1-6. Then, pass the gear shaft 5-1 through the center hole of each gear 5-2 in sequence, continuing to push the gear shaft 5-1 until its other end abuts against the small cylinder 2-1 on the other side. After releasing the applied pressure, due to the rebound force of the spring 3, the small cylinder 2-1 that was previously pressed down quickly returns to its original position, together with the small cylinder 2-1 at the other end, effectively restricting the gear shaft 5-1 from both sides, preventing the gear shaft 5-1 from slipping off, thus constructing a stable temporary assembly, facilitating subsequent overall installation operations.

[0035] After the temporary assembly is formed, the operator must carefully align the Z-plane 1-2, Y-radial plane 1-3, X-radial plane 1-4, and arc surface 1-5 on the gear seat 1 with the Z-direction limiting plane 5-4, Y-radial limiting plane 5-5, X-radial limiting plane 5-6, and cylindrical surface 5-7 on the water meter counter 5 (without gear shaft 5-1 and gear 5-2), respectively. Precise alignment of these planes and surfaces ensures accurate positioning and fit between the auxiliary tooling and the water meter counter in multiple dimensions. After confirming correct alignment, the temporary assembly is smoothly pushed towards the water meter counter 5. With the guidance and limiting effect of the auxiliary tooling, the gear shaft 5-1 is accurately interference-fitted into the water meter counter 5. At this point, the aligned planes on the gear seat 1 completely coincide with the corresponding limiting planes on the water meter counter 5, and the arc surface 1-5 and cylindrical surface 5-7 are tightly fitted, further enhancing the accuracy and stability of the assembly. Finally, the auxiliary tooling of the present invention is smoothly removed in reverse, and the toothed shaft 5-1 and toothed wheel 5-2 are stably placed in the water meter counter 5. Thus, the mission of the entire toothed wheel assembly auxiliary tooling is completed, and the toothed wheel assembly is accurately assembled in the water meter counter.

[0036] The water meter counter 5 is equipped with a Z-direction limiting plane 5-4, a Y-radial limiting plane 5-5, an X-radial limiting plane 5-6, and a cylindrical surface 5-7. These structures form a precise matching relationship with the corresponding planes and arc surfaces on the toothed wheel seat 1. During installation, the fit between Z-plane 1-2 and Z-plane limiting plane 5-4 ensures accurate alignment and limiting of the entire assembly in the longitudinal direction, preventing displacement or offset of the component in the Z-direction. The corresponding fit between Y-plane 1-3 and Y-plane limiting plane 5-5, and X-plane 1-4 and X-plane limiting plane 5-6, respectively, provides precise constraint and positioning of the component in the two radial dimensions of Y and X, ensuring the radial stability of the gear assembly during operation within the water meter counter and avoiding transmission errors and wear caused by radial sway. The tight fit between arc surface 1-5 and cylindrical surface 5-7 further enhances the fit and contact area of ​​the assembly on the curved contour, improving the overall structural stability and operational smoothness. This ensures the accurate installation position of the gear assembly within the water meter counter, providing a solid foundation for accurate counting and long-term stable operation of the water meter counter.

[0037] A toothed wheel shaft slot 5-3 is provided at one end of the water meter counter 5. When the auxiliary tooling is installed in close contact with the water meter counter, the toothed wheel shaft 5-1 can be precisely engaged in the toothed wheel shaft slot 5-3. This design not only provides additional positioning and support points for the toothed wheel shaft 5-1, further enhancing the installation stability of the toothed wheel shaft inside the water meter counter and preventing axial movement or radial displacement of the toothed wheel shaft during operation, but also helps to optimize the relative positional relationship between the toothed wheel assembly and other internal components of the water meter counter.

[0038] The design of the large cylinder 2-2 and the small cylinder 2-1 of the shaft stop 2 is ingenious and practical. During initial installation, the large cylinder can quickly and stably engage with the large end of the stepped hole 1-6 of the gear seat 1, achieving initial positioning of the shaft stop. Meanwhile, the small cylinder 2-1 protrudes at least 3 mm from the Y-radial plane 1-3 in its natural state, providing ample space and a reliable support point for the temporary fixation of the gear shaft 5-1. In the compressed state, the small cylinder 2-1 can flexibly sink into the stepped hole 1-6, adapting to changes in space and mechanical requirements at different stages of assembly. Its use in conjunction with the spring 3 gives the entire shaft stop device excellent elasticity and self-adaptability, effectively solving the problem of fixing and slipping the gear shaft during temporary assembly, and improving the convenience and reliability of the assembly operation.

[0039] The Z-plane 1-2, Y-plane 1-3, X-plane 1-4, and arc surface 1-5 on the gear carrier 1, along with the corresponding limiting structures on the water meter counter 5, form a complete multi-dimensional precision alignment and limiting system. This system can precisely position and constrain the gear assembly from multiple directions, including longitudinal, two radial, and curved contours, ensuring the accurate installation positions of the gear shaft 5-1 and gear 5-2 within the water meter counter. This significantly improves assembly accuracy and quality, reduces the risk of product failure due to assembly deviations, and also facilitates subsequent debugging and maintenance. This is a significant advantage of the functional design of this auxiliary tooling.

[0040] The small cylinder 2-1 of the axle stop 2 protrudes at least 3 mm from the Y-radial plane 1-3 in its natural state. When the axle stop 2 is installed into the stepped hole 1-6 of the gear seat 1, this protruding part of the small cylinder 2-1 provides sufficient space and a reliable support point for the temporary fixation of the gear shaft 5-1. When the operator passes the gear shaft 5-1 sequentially through the center hole of each gear 5-2 and makes one end abut against the small cylinder 2-1, the protruding part of the small cylinder 2-1 effectively prevents the gear shaft 5-1 from slipping before it is finally installed in place, ensuring the stability of the temporary assembly. This design greatly improves the ease of operation, allowing the operator to more easily complete the initial assembly of the gear assembly without worrying about the gear shaft accidentally slipping out.

[0041] The spring 3 provides power support for the elastic movement of the small cylinder 2-1. In its natural state, the elastic force of the spring 3 allows the small cylinder 2-1 to stably protrude from the Y-radial plane 1-3, providing reliable support for the temporary fixation of the gear shaft 5-1. When it is necessary to compress the small cylinder 2-1 for subsequent installation operations, the spring 3 can store elastic potential energy and quickly push the small cylinder 2-1 back to its original position after the pressure is released, ensuring that the gear shaft 5-1 remains stable in the temporary assembly. This cooperation mechanism between the spring 3 and the small cylinder 2-1 not only improves the flexibility of the assembly operation but also enhances the reliability and durability of the entire tooling.

[0042] The end cap 4 is located at one end of the shaft stop 2. Through a tight fit with the stepped holes 1-6, it stably fixes the spring 3 and the shaft stop 2 to the gear seat 1. During installation, when the end cap 4 is tightened on the larger hole side of the stepped holes 1-6, it applies a certain pressure to the spring 3 and the shaft stop 2, ensuring the stability of the entire structure. This fixing effect of the end cap 4 not only prevents the components from loosening or shifting during assembly, but also provides a stable fulcrum for the spring 3, allowing it to fully exert its elastic effect. At the same time, the sealing effect of the end cap 4 can effectively prevent dust, debris, etc., from entering the interior of the stepped holes 1-6, affecting the normal operation of the spring 3 and the shaft stop 2, thereby extending the service life of the tooling.

[0043] The spring 3 and end cap 4 enable this auxiliary tooling to achieve efficient, stable temporary fixing and precise installation during the assembly process. The end cap 4 provides stable support and fixation for the spring 3, while the spring 3 provides the power guarantee for the flexible movement of the small cylinder 2-1.

[0044] The through-slot 4-1 facilitates the installation and removal of the end cap 4. During assembly, when it is necessary to tighten the end cap 4 onto the larger hole side of the stepped holes 1-6, the operator can easily tighten the end cap 4 using a special tool, such as a screwdriver or other suitable tool, through the through-slot 4-1. The shape and size of the through-slot 4-1 match the tool head, ensuring the stability and reliability of the operation. Similarly, when removing the end cap 4, the through-slot 4-1 allows for convenient reverse operation using tools, greatly improving disassembly efficiency.

[0045] For those skilled in the art, this utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model.

Claims

1. A tooling tool for assembling roller cones, characterized in that, It includes a gear seat and axle stops on both sides of the gear seat. The gear seat has several gear grooves, and the gears are placed in the gear grooves. The gears are fixed to each other by a gear shaft. The axle stops on both sides of the gear seat position the gear shaft.

2. The auxiliary tooling for assembling roller cones according to claim 1, characterized in that, The toothed cone seat is provided with a Z-plane, a Y-plane, an X-plane, and a circular arc surface.

3. The auxiliary tooling for assembling roller cones according to claim 2, characterized in that, It also includes a corresponding water meter counter, which is equipped with a Z-axis limiting plane, a Y-axis radial limiting plane, an X-axis radial limiting plane, and a cylindrical surface.

4. The auxiliary tooling for assembling roller cones according to claim 3, characterized in that, During installation, the Z-axis limiting plane, Y-axis radial limiting plane, X-axis radial limiting plane, and cylindrical surface on the gear seat are respectively aligned with the Z-axis limiting plane, Y-axis radial limiting plane, X-axis radial limiting plane, and cylindrical surface on the water meter counter.

5. A roller cone assembly auxiliary tooling according to claim 1 or 4, characterized in that, One end of the water meter counter is also provided with a toothed wheel shaft hole groove. When installed and fitted, the toothed wheel shaft is inserted into the toothed wheel shaft hole groove.

6. The auxiliary tooling for assembling roller cones according to claim 5, characterized in that, The toothed cone seat has stepped holes on both sides, and the shaft stop is placed in the stepped holes.

7. A roller cone assembly auxiliary tooling according to claim 1 or 6, characterized in that, One end of the axle stop is a large cylinder, and the other end is a small cylinder.

8. The auxiliary tooling for assembling roller cones according to claim 7, characterized in that, In its natural state, the small cylinder protrudes at least 3 mm from the Y-radial plane. When compressed, the small cylinder can be completely submerged in the stepped hole.

9. A roller cone assembly auxiliary tooling according to claim 1 or 8, characterized in that, The axle stop is also equipped with a spring and an end cap located at one end of the axle stop.

10. The auxiliary tooling for assembling roller cones according to claim 9, characterized in that, The end cap has a through groove.

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