Patent Publication Number: US-2019193220-A1

Title: Combined through-hole processing machine

Description:
BACKGROUND OF INVENTION 
     1. Field of the Invention 
     The present invention relates generally to an item of processing equipment, and more particularly to a kind of combined through-hole processing machine which can fulfill two processes on one processing machine at the same time with no need for cross-machine transport, thus able to significantly shorten working hours and raise the production efficiency. 
     2. Description of Related Art 
     It is well known that the method of slender shaft part processing is to first fulfill the front-end process of deep hole processing on one processing machine (such as the through-hole processing machine) and then fulfill the deburring processing action on another deburring machine. That is, when the deep-hole processing action on the slender shaft part is fulfilled on the processing machine, the slender shaft part must be taken off the processing machine, transported to the deburring machine location, assembled and clamped again onto the deburring machine and repositioned for hole alignment before the deburring action is conducted finally. It consumes the non-processing time like workpiece assembling and clamping, repositioning for hole alignment and cross-machine transport considerably, which is against the economic benefit and a defect needs to be improved urgently. 
     In light of the above situation, the inventor has spent lots of time to study the related knowledge and compare the advantages and disadvantages, made the research and development of related products, conducted many experiments and tests, and finally come up with a kind of combined through-hole processing machine to meet the public need in application. 
     SUMMARY OF THE INVENTION 
     The main purpose of the present invention is to provide a kind of combined through-hole processing machine capable of fulfilling two processes on one processing machine at the same time to shorten the time for workpiece disassembling and assembling as well as repositioning for hole alignment without needing to consume the non-processing time like cross-machine transport and therefore able to greatly improve the efficiency of production line. 
     Thereby, in order to achieve the above purpose and effect, the present invention provides a kind of combined through-hole processing machine, including a working bed, provided with two opposite and parallel slide rails on it; a deep-hole processing mechanism, provided on the working bed and including a pair of sub-spindle heads used to clamp a deep-hole tool respectively to conduct the deep-hole processing on workpiece; a U axis feed unit, provided between the two slide rails used to provide the feed for the movement in the long axis direction parallel to the two slide rails; and a deburring mechanism, provided on the working bed and located at one end side of the deep-hole processing mechanism and including the corresponding two chucks and two tailstocks where the chucks are used to clamp the workpiece with the deep-hole processing already fulfilled on the deep-hole processing mechanism respectively and the tailstocks are provided to arrange the deburring tools respectively to conduct the deep-hole deburring action on the workpiece. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWING 
         FIG. 1  is schematic diagram of the appearance of a preferred embodiment of the present invention. 
         FIG. 2  is schematic perspective view of the appearance of a preferred embodiment of the present invention. 
         FIG. 3  is a part of the cross-section schematic diagram of a preferred embodiment of the present invention. 
     
    
    
     DETAILED DESCRIPTION OF THE INVENTION 
     The further description will be provided in details hereinafter by taking a preferred embodiment of the present invention for example and in combination with the drawings, where 
     Referring to  FIGS. 1 to 3  wherein the combined through-hole processing machine  1  for the through holes of a preferred embodiment of the present invention can provide both the through hole making and deburring (burr) processing actions to the slender shaft workpiece W (such as the automobile transmission shaft) and includes an outer housing  11  a working bed  12  arranged inside the outer housing  11 , a deep-hole processing mechanism  14  and a deburring mechanism  16 . 
     The working bed  12  is in a U shape where a concave space  22  is provided at its top side; a slide rail  24  is arranged at the end of the two side walls in the front-end part of the working bed  12  respectively; a base plate  26  is erected by several blocks  28  onto the two slide rails  24  where the slide blocks  28  are provided with the corresponding grooves  30  nested in the two slide rails  24  respectively; and a upper plate  32  is arranged in the rear-end part of the working bed  12 , connected with one end of the two slide rails  24  and provided with two grooves  34  extending in the long axis direction and parallel to the two slide rails  24  on it. 
     The deep-hole processing mechanism  14  includes a pair of sub-spindle heads  36 , a U axis feed unit  38  and motor  40 , transmission belt  42  and other components. The pair of sub-spindle heads  36  are provided on the base plate  26  used to clamp a deep-hole tool respectively to conduct the deep-hole processing on workpiece. The U axis feed unit  38  is provided in the concave space  22  between the two slide rails used to provide the feed for the movement in the long axis direction parallel to the two slide rails  24 . Since the components like the pair of sub-spindle heads  36 , motor  40 , transmission belt  42  and U axis feed unit  38  are well known components and not the main feature technologies of the invention, no descriptions of their detailed structures will be provided herein. 
     The deburring mechanism  16  is provided on the working bed  32  and located at one end side of the deep-hole processing mechanism  14  and includes the corresponding two chucks  46  and two tailstocks  48  where the chucks  46  are used to clamp the workpiece W with the deep-hole processing already fulfilled on the deep-hole processing mechanism  14  respectively; the tailstocks  48  are provided to arrange the deburring tools respectively to conduct the deep-hole deburring action on the workpiece W; and the tailstocks  48  are provided on the two grooves  34  used to adjust the position of the tailstocks  48  fixed on the grooves according to the length of the workpiece  2  clamped by the two chucks  46 . 
     The combined through-hole processing machine  1  can even include a well-known processing mechanism  18  in the 4 th  axial direction to be provided on the upper plate  32  and located between the deep-hole processing mechanism  14  and deburring mechanism  16 , which is able to be used to conduct the side-hole through-hole processing action on the workpiece W. 
     Further, a well-known air blowing mechanism (not shown in drawing) corresponding to the deburring mechanism  16  can even be provided and used to blow off the cuttings after deburring to facilitate the subsequent optical inspection operation of the burrs. 
     Thereby, the application method, features and the effectiveness of the combined through-hole processing machine  1  of the present invention are as follows: 
     In the case of deep-hole processing on shaft parts, it can first put the workpiece W on the deep-hole processing mechanism  14  for the deep-hole operation (the processing mechanism  18  in the 4 th  axial direction can also be used again to conduct the side hole processing), then move the workpiece W to the deburring mechanism  16  and use the chucks  46  to clamp the workpiece W, and then perform the deburring (burr) processing action on the workpiece W. Certainly, when the deburring processing is performed by the deburring mechanism  16 , the deep-hole processing mechanism  14  can conduct the deep-hole operation of other workpieces at the same time. 
     Thus, through the present invention of the combined through-hole processing machine, two processes (through-hole making and deburring) can be fulfilled on one processing machine at the same time, which can shorten the non-processing time like that for workpiece assembling and clamping, repositioning for hole alignment and cross-machine transport and thus greatly improve the efficiency of production line and achieve the intended purpose of invention. 
     Further, the combined through-hole processing machine  1  of the present invention is of the two-part operation (with the two kinds of processing of through-hole making and deburring carried out at the same time); the well-known stand-alone through-hole processing machine is of the single-part operation; in comparison, the present invention can improve the output efficiency of production line as well. Also, the price of the combined through-hole processing machine of the present invention can be more favorable than the original two equipment (through-hole processing machine and deburring machine), which is more advantageous capital expenditure to customers. It has practical and progressive effect and can better enhance the industrial competitiveness.