Grinding and edge brushing clamp for round bar
By designing a round rod smoothing brush edge clamp, using the structure of the fixed disc and thimble, the efficient smoothing of the sapphire round rod and brush edge polishing are achieved, and the workpiece inconsistency and processing cycle caused by multiple bonding in the prior art is solved. Long-term problems improve processing efficiency and yield.
Patent Information
- Application Number
- CN202322715759.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-10-10
- Publication Date
- 2025-02-14
- Estimated Expiration
- 2033-10-10
AI Technical Summary
The prior art requires multiple bonding during the processing of sapphire round rods, resulting in inconsistent length of the workpiece, long processing cycle, low yield, and easy to cause damage to the outer wall of the workpiece.
Design a round rod smoothing brush edge clamp. By setting vertical through holes and grooves on the workpiece fixing plate, and applying pressure by inserting a thimble into the conical groove to apply pressure, the smoothing and brush edge polishing of both end faces of the workpiece are achieved. Only processing is required Two processes can be completed by bonding once before.
The processing cycle is shortened, the processing efficiency is improved, the consistency of workpiece length is improved, the damage to the outer wall of the workpiece is reduced, and the yield is improved.
Smart Images
Figure CN222472076U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of medical equipment processing, in particular to a round rod flat brush edge clamp. Background Art
[0002] Sapphire round rods (plunger rods) are widely used in the field of medical equipment. They are precision components with a cylindrical shape. During the processing of the plunger rods, both end faces need to be ground and the edges polished, and both end faces and edges are required to be smoothly connected. At present, the structure of the traditional grinding, brushing and polishing loading and unloading device is that the bottom of the tooling is connected to the substrate. Before processing, each plunger rod to be processed is vertically inserted into the bottom of each tooling hole, so that the upper end face of the plunger rod is exposed to the upper end face of the substrate, and the lower end face of the plunger rod is in contact with the substrate to ensure the uniformity of the insertion depth of each plunger rod. At the same time, glue is injected between the outer wall of the plunger rod and the inner wall of the tooling hole to fix the plunger rod. After the brushing and polishing of one end face are completed, the plunger rod is turned over for processing until it is taken out after the processing is completed.
[0003] The whole process requires the plunger rod to be bonded twice, and the plunger rod sometimes cannot be directly bonded to the bottom of the tooling, resulting in uneven lengths of plunger rods in the same batch, complicated procedures, and low yields. In the process of turning the plunger rod over for the second bonding, scratches are easily generated on the outer surface of the rod body, which also reduces the yield. In addition, the entire processing process has a long processing cycle, which reduces production efficiency and increases production costs. Therefore, how to solve the above problems has become the focus of research. Summary of the invention
[0004] The utility model aims to solve the problems existing in the prior art and proposes a round rod grinding brush edge clamp. It is provided with a vertical through hole on the workpiece fixing plate, and the thickness of the tool fixing plate is smaller than the length of the workpiece. When the workpiece is inserted into the vertical through hole, both ends of the workpiece can be exposed at the upper and lower ends of the workpiece fixing plate. At the same time, grooves are provided at the upper and lower ends of the workpiece fixing plate, and the groove bottoms of the two grooves are provided with conical grooves for the insertion of ejectors. The ejectors are inserted into the conical grooves from top to bottom, and downward pressure is applied to the workpiece fixing plate to start grinding the lower end surface of the workpiece. After the lower end surface is processed, the workpiece fixing plate and the workpiece are turned over as a whole to grind the other end surface. When the grinding process is completed, there is no need to take out each workpiece, and the groove of the workpiece fixing plate can be directly inserted into the connecting tool of the brush edge machine to carry out the next brush edge polishing process. Using the round rod grinding brush edge clamp, it only needs to be bonded once before processing to complete two processes, shortening the processing cycle, improving processing efficiency, improving the consistency of workpiece length, and reducing damage to the outer wall of the workpiece.
[0005] The purpose of the utility model is achieved in this way:
[0006] A round rod grinding brush edge fixture comprises a workpiece fixing disk, which is cylindrical and is provided with a plurality of vertical through holes for fixing the workpiece, the cross-section of the through holes is circular, the thickness of the workpiece fixing disk is smaller than the length of the workpiece, grooves are symmetrically arranged at the center of the upper and lower ends of the workpiece fixing disk, the bottoms of the two grooves are provided with conical grooves for inserting ejector pins, the workpiece is inserted into the vertical through holes and fixed by bonding, so that both ends of the workpiece are exposed at the upper and lower ends of the workpiece fixing disk.
[0007] Furthermore, the vertical through holes are distributed on the circumference of concentric circles of different diameters of the workpiece fixing plate.
[0008] Furthermore, the number of the concentric circles is greater than or equal to two, and the spacing between the vertical through holes on the same circumference is equal.
[0009] Furthermore, the two grooves are both stepped structures, which are respectively a large diameter section and a small diameter section from the outside to the inside.
[0010] Furthermore, the workpiece fixing plate is made of 45 steel, A3 steel, or stainless steel.
[0011] By adopting the above scheme, the round rod brush edge grinding fixture of the utility model has a simple structure and is easy to operate. It only needs to bond the workpiece once before processing to complete two processes, thereby improving processing efficiency, shortening processing cycle, improving consistency of workpiece length, and reducing damage to the outer wall of the workpiece.
[0012] The utility model is further described below in conjunction with the accompanying drawings and specific implementation methods. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 It is a structural schematic diagram of the utility model.
[0014] Figure 2 for Figure 1 Schematic diagram of direction A.
[0015] Figure 3 It is an assembly diagram of the utility model.
[0016] Figure 4 Schematic diagram of the structure of the gasket.
[0017] Figure 5 It is a structural schematic diagram of the connecting tooling.
[0018] Explanation of the reference numerals: workpiece fixing plate 1, workpiece 2, through hole 3, groove 4, ejector pin 5, tapered groove 6, large diameter section 7, small diameter section 8, washer 9, connecting tool 10. DETAILED DESCRIPTION
[0019] See also Figures 1 to 5A round rod brush edge grinding fixture comprises a workpiece fixing disk 1, the workpiece fixing disk 1 is cylindrical, and is provided with a plurality of vertical through holes 3 for fixing a workpiece 2, and the cross section of the through holes 3 is circular. Furthermore, the vertical through holes 3 are distributed on the circumference of the workpiece fixing disk 1 where concentric circles of different diameters are located. In the present embodiment, the number of the concentric circles is greater than or equal to two, and the spacing between the vertical through holes 3 on the same circumference is equal and evenly distributed on the circumference. The thickness of the workpiece fixing disk 1 is less than the length of the workpiece 2, and the workpiece 2 is inserted into the vertical through holes 3 and fixed by bonding, so that both ends of the workpiece 2 are exposed at the upper and lower ends of the workpiece fixing disk 1. In the present embodiment, the thickness of the workpiece fixing disk 1 is 2 mm to 3 mm smaller than the height of the workpiece 2.
[0020] Grooves 4 are symmetrically arranged at the centers of the upper and lower ends of the workpiece fixing disk 1, and conical grooves 6 for inserting ejector pins 5 are arranged at the bottoms of the two grooves 4. The ejector pins 5 are vertically inserted into the conical grooves 6 to apply downward pressure to the workpiece fixing disk 1. The opening angle of the conical groove 6 is between 80° and 90°, and the tip angle of the ejector pin 5 is smaller than the opening angle of the conical groove 6. Furthermore, the two grooves 4 are both stepped structures, which are respectively a large diameter section 7 and a small diameter section 8 from the outside to the inside. In the present embodiment, the material of the workpiece fixing disk 1 is 45 steel, or A3 steel, or stainless steel.
[0021] The utility model of the round rod grinding brush edge fixture is used to first grind the two end faces of the workpiece 2, and then brush and polish the workpiece 2. Before use, the workpiece fixing plate 1 is placed on the horizontal substrate, and the washer 9 is inserted into the large diameter section 7 of the groove 4 at the lower end of the workpiece fixing plate 1. The height of the washer 9 is 1mm to 1.2mm higher than the depth of the large diameter section 7. The washer 9 is used to raise the workpiece fixing plate 1, and then each workpiece 2 is vertically inserted into each vertical through hole 3, so that the lower end face of each workpiece 2 contacts the horizontal substrate, so that each workpiece 2 is kept flush, and each workpiece 2 is bonded and fixed to the workpiece fixing plate 1. The gap between the vertical through hole 3 and the workpiece 2 is 0.01mm to 0.03mm. If the gap is smaller than the above range, it will cause bonding difficulties. If the gap is larger than the above range, it will affect the verticality of the workpiece 2. After bonding, the washer 9 is removed and the two end faces of the workpiece 2 are ground. The ejector pin 5 is inserted into the conical groove 6 at the upper end of the workpiece fixing plate 1 to grind the lower end face of the workpiece 2. After the lower end face is processed, the workpiece fixing plate 1 and the workpiece 2 are turned over, and the ejector pin 5 is inserted into another conical groove 6 to continue to grind the other end face. After the grinding process is completed, the workpiece 2 is brushed and polished. There is no need to take out each workpiece 2. The workpiece fixing plate 1 and the workpiece 2 are uniformly placed in the machine for brushing and polishing the edges. The boss at the upper end of the connecting tool 10 is inserted into the large diameter section 7 of the groove 4 at the lower end of the workpiece fixing plate 1. The upper end face of each workpiece 2 is brushed and polished first. After the end, the workpiece fixing plate 1 and the workpiece 2 are uniformly turned over, and the other end face is brushed and polished until the end.
[0022] The round rod brush edge grinding fixture of the utility model has a simple structure and is easy to operate. It only requires bonding the workpiece 2 once before processing to complete two processes, thereby improving processing efficiency, shortening processing cycle, improving consistency in length of the workpiece 2, and reducing damage to the outer wall of the workpiece 2.
[0023] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modification made to the present invention by those skilled in the art without departing from the spirit of the present invention shall fall within the protection scope of the present invention.
Claims
1. A round rod brush edge grinding fixture, comprising a workpiece fixing plate (1), characterized in that: The workpiece fixing plate (1) is cylindrical and is provided with a plurality of vertical through holes (3) for fixing the workpiece (2). The cross section of the through holes (3) is circular. The thickness of the workpiece fixing plate (1) is smaller than the length of the workpiece (2). Grooves (4) are symmetrically provided at the center of the upper and lower ends of the workpiece fixing plate (1). The bottoms of the two grooves (4) are provided with conical grooves (6) for inserting ejector pins (5). The workpiece (2) is inserted into the vertical through holes (3) and fixed by bonding, so that both ends of the workpiece (2) are exposed at the upper and lower ends of the workpiece fixing plate (1).
2. The round rod brush edge grinding fixture according to claim 1, characterized in that: The vertical through holes (3) are distributed on the circumference of the workpiece fixing plate (1) where concentric circles of different diameters are located.
3. The round rod brush edge grinding fixture according to claim 2, characterized in that: The number of the concentric circles is greater than or equal to two, and the spacing between the vertical through holes (3) on the same circumference is equal.
4. The round rod brush edge grinding fixture according to claim 1, characterized in that: The two grooves (4) are both stepped structures, and from the outside to the inside they are respectively a large diameter section (7) and a small diameter section (8).
5. The round rod brush edge grinding fixture according to claim 1, characterized in that: The material of the workpiece fixing plate (1) is 45# steel, A3 steel, or stainless steel.