A cross-coupling trimmer
By designing a cross-shaped dressing tool on a cross-bearing grinding machine, and utilizing structures such as slide rails, telescopic mechanisms, and hydraulic speed stabilizers, synchronous movement of the diamond dressing tool was achieved. This solved the problems of unstable dressing accuracy and high cost in existing technologies, and improved dressing efficiency and accuracy.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- XINXIANG SUNRISE CNC BEARING EQUIP
- Filing Date
- 2025-09-04
- Publication Date
- 2026-07-31
AI Technical Summary
The dressing accuracy of existing cross bearing grinding machines is unstable, and the roller dressing efficiency is low and the cost is high.
A cross-shaped trimmer is used, which involves installing two slide rails on a fixed plate, sliding a support plate, and using a telescopic mechanism to drive the two support plates to move synchronously. The diamond pen is fixed on the support plate by a pen holder, achieving synchronism between the two diamond pens. Combined with a hydraulic speed stabilizer and positioning structure, trimming accuracy and stability are ensured.
This improved the trimming accuracy, ensured the stability of the trimming accuracy, and reduced costs.
Smart Images
Figure CN224575409U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to trimmers, specifically to a cross-shaped trimmer. Background Technology
[0002] Grinding the inner and outer raceways of crossed roller bearings requires dressing grinding wheels to achieve a 90-degree cross shape. Existing crossed roller bearing grinding machines mostly use roller dressing or single-point diamond dressing on one side. Roller dressing is efficient but costly and has low precision. Publication number CN113427401A describes a synchronous dressing cross-shaped dresser that uses a 90-degree cross-shaped grinding wheel to achieve synchronous dressing of both sides of the grinding wheel. However, its two diamond dressing tools are driven by two separate pistons, and the dressing precision is limited by the synchronization of the two pistons themselves, resulting in unstable dressing accuracy. Utility Model Content
[0003] In view of the problems in the prior art, this utility model provides a cross-shaped trimmer, which aims to improve trimming accuracy and ensure the stability of trimming accuracy.
[0004] A cross-shaped trimmer includes a fixed plate. Two vertically arranged slide rails are fixedly installed at one end of the fixed plate. These two slide rails are located in the same plane. Two support plates are slidably arranged on these two slide rails respectively. Two diamond pens are fixedly installed on these two support plates respectively. The longitudinal direction of the diamond pens is perpendicular to the moving direction of the support plates connected to them. A telescopic mechanism is fixedly installed at the other end of the fixed plate. The axis of the telescopic rod of the telescopic mechanism is located in the vertical plane containing the angle bisector of the angle between the two slide rails. The telescopic rod is connected to the two support plates respectively through two connecting rods of equal length and drives the two support plates to move synchronously. The tips of the two diamond pens are symmetrically arranged about the vertical plane containing the axis of the telescopic rod.
[0005] Furthermore, the two ends of the connecting rod are respectively hinged to the telescopic rod and the support plate, and the two connecting rods and the telescopic rod form a Y-shaped structure.
[0006] Furthermore, the telescopic mechanism can be a pneumatic telescopic cylinder, a hydraulic telescopic cylinder, an electric actuator, or a nut and screw assembly.
[0007] Furthermore, the slide rail is a heavy-duty ball linear slide rail.
[0008] Furthermore, two hydraulic speed regulators are fixedly connected to the fixed plate. These two hydraulic speed regulators are located on the sides of the two support plates respectively. The piston rods of the hydraulic speed regulators abut against the corresponding support plates, and the axial direction of the piston rods is the same as the moving direction of the support plates.
[0009] Furthermore, a connecting plate is integrally provided on the support plate at the position corresponding to the front end of the piston rod, and the front end of the piston rod is fixedly connected to the connecting plate; a limit screw is fixedly connected on the fixed plate on one side of the hydraulic speed regulator.
[0010] Furthermore, the diamond pen is fixedly connected to the tray via a pen holder. The pen holder is a strip structure with a rectangular cross-section. The diamond pen is embedded in the end face of the free end of the pen holder. A strip-shaped through groove is provided at the fixed end of the pen holder. The length direction of the strip-shaped through groove is the same as the length direction of the pen holder. A screw is inserted through the strip-shaped through groove. The pen holder is bolted to the top surface of the tray by the screw.
[0011] Further, the fixing plate is fitted onto the table surface of the fixing platform, and a positioning shaft is fixedly connected to the table surface. The positioning shaft passes through the middle of the fixing plate and rotates with it. Several arc-shaped positioning holes are distributed on the fixing plate around the axis of the positioning shaft. The center of the arc-shaped positioning holes is located on the axis of the positioning shaft. Screws are inserted through the arc-shaped positioning holes, and the fixing plate is bolted to the fixing platform by screws.
[0012] The beneficial effects of this utility model are: the two trays are driven by the same telescopic rod, which can effectively ensure the synchronization of the diamond pen on the two trays, improve the trimming accuracy and ensure the stability of the trimming accuracy. Attached Figure Description
[0013] Figure 1 This is a top view of the structure of this utility model; Figure 2 for Figure 1 AA section view of the middle structure; Figure 3 This is a diagram showing the trimming state of the workpiece to be trimmed according to this utility model. Detailed Implementation
[0014] The present invention will now be described in detail with reference to the accompanying drawings. Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention. The directional terms such as left, center, right, top, and bottom in the embodiments of the present invention are only relative concepts or referenced to the normal use state of the product, and should not be considered restrictive.
[0015] A cross-shaped trimmer, combined with Figure 1 and Figure 2As shown, the device includes a fixed plate 1. Two vertically arranged slide rails 4 are fixedly installed at one end of the fixed plate 1. The fixed plate 1 has a Y-shaped structure and is placed horizontally. The two slide rails 4 are located in two branch areas at one end of the Y-shaped structure and are located in the same plane. Two support plates 3 are slidably mounted on the two slide rails 4 via slide blocks 32. To improve the stability of the support plates 3 on the slide rails 4, the slide rails 4 are heavy-duty ball linear slide rails. Two diamond pens 5 are fixedly installed on the two support plates 3 respectively. The longitudinal direction of the diamond pens 5 is perpendicular to the moving direction of the support plates 3 connected to them. A telescopic mechanism 6 is fixedly installed at the other end of the fixed plate 1. The telescopic mechanism 6 is a pneumatic telescopic cylinder, hydraulic telescopic cylinder, electric actuator cylinder, or nut screw assembly. The axis of the telescopic rod 61 of the telescopic mechanism 6 is located in the vertical plane containing the angle bisector of the angle between the two slide rails 4. The telescopic rod 61 is connected to the two support plates 3 respectively through two connecting rods 7 of equal length. The two support plates 3 move synchronously. The two ends of the connecting rod 7 are hinged to the telescopic rod 61 and the support plate 3 respectively. The two connecting rods 7 and the telescopic rod 61 form a Y-shaped structure. The tips of the two diamond pens 5 are symmetrically arranged about the vertical plane containing the axis of the telescopic rod 61. To facilitate the fixed installation of the diamond pens 5 on the support plate 3, the diamond pens 5 are fixedly connected to the support plate 3 via pen holders 51. The pen holders 51 are strip-shaped structures with rectangular cross-sections. The diamond pens 5 are embedded in the free end of the pen holders 51 (i.e.,...). On the end face of the pen holder 51 away from the support plate 3, a strip-shaped through groove 511 is provided at the fixed end of the pen holder 51 (i.e., the end of the pen holder 51 close to the support plate 3). The longitudinal direction of the strip-shaped through groove 511 is the same as the longitudinal direction of the pen holder 51. A screw is installed through the strip-shaped through groove 511, and the pen holder 51 is bolted to the top surface of the support plate 3 by the screw. The length of the pen holder 51 extending out of the support plate 3 can be adjusted by the strip-shaped through groove 511, thereby adjusting the distance between the two diamond pens 5.
[0016] Two hydraulic speed regulators 12 are fixedly connected to the fixed plate 1. These two hydraulic speed regulators 12 are located on the sides of the two support plates 3 respectively. The piston rod of the hydraulic speed regulator 12 abuts against the corresponding support plate 3, and the axial direction of the piston rod is the same as the moving direction of the support plate 3. The diamond pen 5 and the hydraulic speed regulator 12 are located on opposite sides of the support plate 3 respectively. A connecting plate 31 is integrally provided on the support plate 3 at the position corresponding to the front end of the piston rod. The front end of the piston rod abuts against the support plate 3 through the connecting plate 31. In order to monitor the movement parameters of the support plate 3, a limit screw 13 is fixedly connected to the fixed plate 1 on one side of the hydraulic speed regulator 12. The limit screw 13 is used to limit the left limit of the connecting plate 31.
[0017] In addition, to adjust the relative position between the dressing tool and the workpiece to be dressed, and to ensure that the two sides of the working surface of the workpiece to be dressed are symmetrical with respect to the center of the workpiece, the fixing plate 1 is attached to the table surface of the fixing platform 8. A positioning shaft 81 is fixedly connected to the table surface. The positioning shaft 81 passes through the middle of the fixing plate 1 and rotates with it. Several arc-shaped positioning holes 11 are distributed on the fixing plate 1 around the axis of the positioning shaft 81. The center of the arc-shaped positioning hole 11 is located on the axis of the positioning shaft 81. Screws are inserted through the arc-shaped positioning holes 11. The fixing plate 1 is bolted to the fixing platform 8 by screws.
[0018] At work, such as Figure 3 As shown, the disc-shaped workpiece 9 to be repaired is placed between the two diamond pens 5, and the two working surfaces of the edge of the workpiece 9 correspond to the two diamond pens 5 respectively; the telescopic rod 61 drives the two support plates 3 to move back and forth synchronously on the slide rail 4 through the two connecting rods 7, thereby driving the diamond pens 5 to repair the working surface of the workpiece 9.
[0019] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A cross intersection trimmer comprising a fixed plate, two vertically arranged slide rails are fixedly installed on one end of the fixed plate, the two slide rails are located in the same plane, two supporting plates are slidingly arranged on the two slide rails respectively, and two diamond pens are fixedly installed on the two supporting plates respectively, the long direction of the diamond pen is perpendicular to the moving direction of the supporting plate connected therewith; characterized in that: A telescopic mechanism is fixedly installed at the other end of the fixed plate. The axis of the telescopic rod of the telescopic mechanism is located in the vertical plane where the angle bisector of the angle between the two slide rails is located. The telescopic rod is connected to the two support plates respectively through two connecting rods of equal length and drives the two support plates to move synchronously. The tips of the two diamond pens are symmetrically arranged about the vertical plane where the axis of the telescopic rod is located.
2. The cross-shaped trimmer according to claim 1, characterized in that: The two ends of the connecting rod are hinged to the telescopic rod and the support plate, respectively, and the two connecting rods and the telescopic rod form a Y-shaped structure.
3. The cross-shaped trimmer according to claim 1, characterized in that: The telescopic mechanism is a pneumatic telescopic cylinder, a hydraulic telescopic cylinder, an electric actuator, or a nut and screw assembly.
4. The cross-shaped trimmer according to claim 1, characterized in that: The slide rail is a heavy-duty ball linear slide rail.
5. The cross-shaped trimmer according to claim 1, characterized in that: Two hydraulic speed regulators are fixedly connected to the fixed plate. These two hydraulic speed regulators are located on the sides of the two support plates respectively. The piston rods of the hydraulic speed regulators abut against the corresponding support plates, and the axial direction of the piston rods is the same as the moving direction of the support plates.
6. The cross-shaped trimmer according to claim 5, characterized in that: A connecting plate is integrally installed on the support plate at the position corresponding to the front end of the piston rod, and the front end of the piston rod is fixedly connected to the connecting plate; a limit screw is fixedly connected on the fixed plate on one side of the hydraulic speed regulator.
7. The cross-shaped trimmer according to claim 1, characterized in that: The diamond pen is fixedly connected to the tray via a pen holder. The pen holder is a strip structure with a rectangular cross-section. The diamond pen is embedded in the end face of the free end of the pen holder. A strip-shaped through groove is provided at the fixed end of the pen holder. The length direction of the strip-shaped through groove is the same as the length direction of the pen holder. A screw is inserted through the strip-shaped through groove. The pen holder is bolted to the top surface of the tray by the screw.
8. The cross-shaped trimmer according to claim 1, characterized in that: The fixing plate is attached to the table surface of the fixing platform. A positioning shaft is fixedly connected to the table surface. The positioning shaft passes through the middle of the fixing plate and rotates with it. Several arc-shaped positioning holes are distributed around the axis of the positioning shaft on the fixing plate. The center of the arc-shaped positioning holes is located on the axis of the positioning shaft. Screws are inserted through the arc-shaped positioning holes. The fixing plate is bolted to the fixing platform by screws.