Adjustable positioning tool for filter shell machining
By introducing a servo motor-driven bevel gear transmission and threaded slide system into the filter housing processing equipment, the filter fixture can achieve precise positioning in all directions, solving the problems of insufficient positioning convenience and stability of existing equipment, and improving processing efficiency and accuracy.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SUZHOU RIYAO PRECISION MASCH CO LTD
- Filing Date
- 2025-05-07
- Publication Date
- 2026-05-15
AI Technical Summary
The positioning fixtures of existing filter housing processing equipment are inadequate in terms of limiting and positioning convenience and stability, resulting in low processing efficiency.
An adjustable positioning fixture for processing filter housings was designed. It uses a servo motor-driven active bevel gear and driven bevel gear meshing transmission, combined with a threaded slide and positioning locating shaft, to achieve all-round precise limiting and positioning of the filter fixture.
It improves the efficiency and precision of filter housing processing, enhances the power utilization efficiency and positioning stability of the equipment, and adapts to the positioning requirements of different filter fixtures.
Smart Images

Figure CN224248934U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of filter processing equipment technology, specifically a positioning fixture for processing adjustable filter housings. Background Technology
[0002] After the filter housing is shaped, it needs to undergo other processing steps. Among these, the positioning fixture is an indispensable piece of equipment in the processing of the filter housing. It can lock and position the filter, thereby facilitating the improvement of the accuracy and efficiency of external processing equipment in processing the filter housing.
[0003] For example, the utility model patent disclosed in publication number CN217371926U discloses a floating positioning machining fixture for filter housings, including a base, a sliding device, a guide rail, a movable seat, a bidirectional threaded rod, a transmission rod, a fixed frame, a clamping plate, and a rotating shaft. The base has a sliding groove, with a sliding device installed on one inner wall of the sliding groove and a guide rail installed on the other inner wall. One end of the movable seat is fixedly connected to a slider on the sliding device, and the other end is slidably connected to the guide rail, facilitating movement of the movable seat and thus adjusting the position of the filter housing. This allows for streamlined operation and higher processing efficiency. Simultaneously, two motor-driven bidirectional threaded rods are rotatably installed inside the movable seat, and each of the two bidirectional threaded rods is threadedly connected to a slider. One end of the transmission rod is rotatably connected to the slider, and the other end is rotatably connected to the fixed frame. The movement of the two sliders causes the transmission rod to swing, thereby adjusting the height of the fixed frame. This allows for floating machining of the filter housing, making it more convenient to use.
[0004] Although the above-mentioned equipment can perform processing and positioning of the filter, it lacks convenience and stability in limiting and positioning the filter housing, which reduces the efficiency of subsequent processing of the filter housing. Therefore, there is an urgent need for an adjustable positioning fixture for processing the filter housing to solve the above-mentioned problems. Utility Model Content
[0005] The purpose of this invention is to provide a positioning fixture for machining an adjustable filter housing, so as to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a positioning fixture for machining an adjustable filter housing, comprising a support guide for support, a cross-shaped guide groove on the upper end face of the support guide, four sets of linear retaining shafts equidistantly arranged on the lower end face of the support guide, and a support retaining plate fixedly arranged at the center of the lower end face of the linear retaining shafts.
[0007] A thin cylinder is fixedly disposed at the center of the lower end face of the support plate, and a positioning device is provided at the output end of the thin cylinder for locking and positioning.
[0008] A filter fixture is fixedly snapped into the interior of the positioning device, and four sets of limiting slots are equidistantly provided on the side end face of the filter fixture.
[0009] Preferably, aluminum profile columns are provided at the four corners of the upper end face of the support guide, and fixing plates are fixedly provided on the upper end faces of the four sets of aluminum profile columns.
[0010] The positioning device includes a guide slide, with linear bearings fixedly engaged at the four corners of the inner end face of the guide slide. A servo motor is located at the center of the lower end face of the guide slide, and a driving bevel gear is located at the output end of the servo motor. Four sets of driven bevel gears are equidistantly engaged on the inner end face of the guide slide near the driving bevel gear. A transmission screw is fixedly engaged at the center of the inner end face of each set of driven bevel gears. Four sets of threaded slides are equidistantly engaged on the inner end face of the guide slide, and a positioning pin is located near the top of the inner end face of the threaded slide. A cylinder holder is located on the lower end face of the guide slide opposite the servo motor.
[0011] Preferably, the bottom of the four sets of threaded slides is threadedly connected to the inner end face of the guide slide via the transmission screw, which can effectively improve the stability and accuracy of the displacement of the threaded slides inside the guide slide. At the same time, the centripetal and centrifugal displacement of the four sets of threaded slides can also improve the adaptability of the subsequent positioning chuck to the limiting of different types of filter fixtures and filter housings.
[0012] Preferably, the threaded slide is adapted to the positioning clip and the limiting slot through the positioning clip and thus fixedly engaged with the filter fixture. The four sets of threaded slides can be positioned by the positioning clip and the limiting slot, thereby providing all-round precise positioning and limiting of the four sides of the filter fixture, thereby improving the stability and accuracy of subsequent positioning and limiting of the filter housing.
[0013] Preferably, all four sets of driven bevel gears are meshed with the driving bevel gear located in the middle, which can effectively improve the stability of the transmission inside the equipment and also improve the efficiency of the equipment in utilizing power.
[0014] Preferably, the guide slide is slidably connected to the lower end face of the support guide by means of the linear bearing and the linear clamp. The sliding fit of the four sets of linear bearings and the linear clamp can effectively improve the stability of the guide slide in the axial direction displacement. At the same time, the thin cylinder drives the guide slide to move up and down, which can not only position the filter fixture, but also facilitate the avoidance of obstruction when loading and unloading the filter housing.
[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0016] 1. By setting up a positioning device, when processing the filter housing in the filter fixture, the servo motor can synchronously drive four sets of driven bevel gears and threaded slides to rotate through the active bevel gear. This allows the four sets of threaded slides to drive the filter fixture to quickly and accurately center and limit its position through the positioning chuck. This enables the filter fixture and the internal filter housing to be positioned and limited quickly and stably, thereby improving the efficiency of subsequent equipment in processing the internal filter housing of the filter fixture. It also improves the convenience and accuracy of the equipment in alignment. Attached Figure Description
[0017] Figure 1 This is an exploded view of the main body of this utility model;
[0018] Figure 2 This is a schematic diagram of the main structure of the present utility model;
[0019] Figure 3 This is a schematic diagram of the positioning device of this utility model;
[0020] Figure 4 This is a side view of the positioning device of this utility model.
[0021] In the diagram: 1-Guide chute, 2-Positioning device, 3-Thin cylinder, 4-Support plate, 5-Linear shaft, 6-Support guide seat, 7-Aluminum profile column, 8-Fixing plate, 9-Filter fixture, 10-Limiting slot, 21-Transmission screw, 22-Positioning shaft, 23-Threaded slide, 24-Driven bevel gear, 25-Driven bevel gear, 26-Servo motor, 27-Guide slide, 28-Linear bearing, 29-Cylinder holder. 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. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0023] Please see Figure 1-4 This utility model provides an embodiment of a positioning fixture for machining an adjustable filter housing, including a support guide 6 for support, a cross-shaped guide groove 1 on the upper end face of the support guide 6, four sets of linear retaining shafts 5 equidistantly arranged on the lower end face of the support guide 6, and a support retaining plate 4 fixedly arranged at the center of the lower end face of the linear retaining shafts 5.
[0024] A thin cylinder 3 is fixedly installed at the center of the lower end face of the support plate 4, and a positioning device 2 is provided at the output end of the thin cylinder 3. The positioning device 2 is used for locking and positioning.
[0025] The filter fixture 9 is fixedly snapped into the inside of the positioning device 2, and four sets of limiting slots 10 are equidistantly opened on the side end face of the filter fixture 9.
[0026] Aluminum profile columns 7 are provided at the four corners of the upper end face of the support guide seat 6, and fixing plates 8 are fixedly installed on the upper end face of the four sets of aluminum profile columns 7.
[0027] like Figure 3 and Figure 4 The positioning device 2 includes a guide slide 27. Linear bearings 28 are fixedly engaged at the four corners of the inner end face of the guide slide 27. A servo motor 26 is located at the center of the lower end face of the guide slide 27. An active bevel gear 25 is located at the output end of the servo motor 26. Four sets of driven bevel gears 24 are equidistantly engaged on the inner end face of the guide slide 27 near the active bevel gear 25. A transmission screw 21 is fixedly engaged at the center of the inner end face of each set of driven bevel gears 24. Four sets of threaded slides 23 are equidistantly engaged on the inner end face of the guide slide 27. A positioning pin 22 is located near the top of the inner end face of the threaded slide 23. A cylinder holder 29 is located on the lower end face of the guide slide 27 opposite the servo motor 26.
[0028] like Figure 4 The bottom of the four sets of threaded slides 23 are threadedly connected to the inner end face of the guide slide 27 via the transmission screw 21, which can effectively improve the stability and accuracy of the displacement of the threaded slides 23 inside the guide slide 27. At the same time, the centripetal and centrifugal displacement of the four sets of threaded slides 23 can also improve the adaptability of the subsequent positioning clasp 22 to the limiting of different types of filter fixtures 9 and filter housings.
[0029] like Figure 1 and Figure 3The threaded slide 23 is adapted to the positioning slot 10 through the positioning pin 22 and then fixedly engaged with the filter fixture 9. The four sets of threaded slides 23 can be positioned by the positioning pin 22 and the positioning slot 10, thereby accurately limiting and positioning the four sides of the filter fixture 9 in all directions, thus improving the stability and accuracy of subsequent positioning and limiting of the filter housing.
[0030] like Figure 3 All four sets of driven bevel gears 24 are meshed with the driving bevel gear 25 located in the middle, which can effectively improve the stability of the transmission inside the equipment and also improve the efficiency of the equipment in utilizing power.
[0031] like Figure 4 The guide slide 27 is slidably connected to the lower end face of the support guide 6 by adapting to the linear bearing 28 and the linear clamp 5. The sliding adaptation of the four sets of linear bearings 28 and the linear clamp 5 can effectively improve the stability of the guide slide 27 in the axial direction displacement. At the same time, the thin cylinder 3 drives the guide slide 27 to move up and down, which can not only position the filter fixture 9, but also facilitate the avoidance of the filter housing when loading and unloading.
[0032] Working Principle: Before use, the operator can install the external processing and testing module onto the upper part of the fixed clamping plate 8, then position the feeding module on the side of the support guide 6, and then position the two sets of pushing cylinders on two different sides of the guide slide 1 to facilitate the subsequent export of the processed filter housing. During processing, the external feeding module can guide the filter fixture 9 and the internal filter housing to the middle of the guide slide 1. Then, the thin cylinder 3 is activated, which can drive the guide slide 27 to rise. Subsequently, the guide slide 27 can drive the four sets of threaded slides 23 to move upward synchronously, thereby processing the filter housing. The filter fixture 9 is initially positioned externally. After positioning, the servo motor 26 is started. The servo motor 26 can synchronously drive the four sets of driven bevel gears 24 to mesh and rotate through the active bevel gear 25. This allows the four sets of driven bevel gears 24 to drive the four sets of threaded slides 23 and positioning pinions 22 to perform centripetal displacement through the transmission screw 21. This allows the four sets of positioning pinions 22 to limit the limiting slots 10 on the outside of the filter fixture 9, so that the filter fixture 9 can be aligned with the processing module, which is convenient for subsequent processing. It also makes it convenient for the external inspection module to inspect the processed filter housing.
[0033] 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 positioning fixture for machining an adjustable filter housing, comprising a support guide (6) for support, a cross-shaped guide groove (1) on the upper end face of the support guide (6), four sets of linear retaining pins (5) equidistantly arranged on the lower end face of the support guide (6), and a support retaining plate (4) fixedly arranged at the center of the lower end face of the linear retaining pins (5), characterized in that: A thin cylinder (3) is fixedly installed at the center of the lower end face of the support plate (4), and a positioning device (2) is provided at the output end of the thin cylinder (3). The positioning device (2) is used for locking and positioning. The filter fixture (9) is fixedly snapped into the inside of the positioning device (2), and four sets of limiting slots (10) are equidistantly provided on the side end face of the filter fixture (9).
2. The positioning fixture for machining an adjustable filter housing according to claim 1, characterized in that: Aluminum profile columns (7) are provided at the four corners of the upper end face of the support guide (6), and fixing plates (8) are fixedly provided on the upper end face of the four sets of aluminum profile columns (7). The positioning device (2) includes a guide slide (27). Linear bearings (28) are fixedly engaged at the four corners of the inner end face of the guide slide (27). A servo motor (26) is located at the center of the lower end face of the guide slide (27). A drive bevel gear (25) is located at the output end of the servo motor (26). Four sets of driven bearings are equidistantly engaged on the inner end face of the guide slide (27) near the drive bevel gear (25). A bevel gear (24) is fixedly engaged with a transmission screw (21) at the center of the inner end face of each set of driven bevel gears (24). Four sets of threaded slides (23) are equidistantly engaged on the inner end face of the guide slide (27). A positioning pin (22) is provided near the top of the inner end face of the threaded slide (23). A cylinder holder (29) is provided on the lower end face of the guide slide (27) opposite to the servo motor (26).
3. The positioning fixture for machining an adjustable filter housing according to claim 2, characterized in that: The bottom of the four sets of threaded slides (23) is threadedly connected to the inner end face of the guide slide (27) via the transmission screw (21).
4. The positioning fixture for machining an adjustable filter housing according to claim 2, characterized in that: The threaded slide (23) is adapted to the limiting slot (10) through the positioning pin (22) and then fixedly engaged with the filter fixture (9).
5. The positioning fixture for machining an adjustable filter housing according to claim 2, characterized in that: All four sets of driven bevel gears (24) are engaged with the driving bevel gear (25) located in the middle.
6. The positioning fixture for machining an adjustable filter housing according to claim 2, characterized in that: The guide slide (27) is adapted to the linear bearing (28) and the linear retaining shaft (5) and thus slidably connected to the lower end face of the support guide (6).