Steering coupling shaping device and process

Abstract

The invention relates to the technical field of coupler manufacturing processes, and discloses a steering coupler shaping device and process, the steering coupler shaping device comprises an upper punching seat and a lower punching seat, an upper punching rod facing the lower punching seat is arranged in the upper punching seat, a female die embedded into the lower punching seat is arranged in the lower punching seat, and a lower punching rod corresponding to the upper punching rod is arranged in the female die; and the upper punching rod and the lower punching rod are used for pressing and shaping the coupler in the operation process of the female die. The coupler can be pressed and shaped, the structure of the coupler is guaranteed, the designed upper punch rod and the female die are matched to press and shape the structure of the coupler, and the structure of the coupler is guaranteed; besides, the lower punch rod corresponding to the upper punch rod in position is designed, so that the coupler can be quickly demolded after being pressed and shaped, demolding is easy, production efficiency is greatly improved, burrs on the coupler can be removed, the problems of low efficiency and high cost caused by finish machining and the like are solved, and the structure of the coupler can be guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of manufacturing technology of couplings, and in particular to a steering coupling shaping device and technology. Background Art

[0002] Couplings belong to the category of general mechanical parts. They are mechanical parts used to connect two shafts (driving shaft and driven shaft) in different mechanisms so that they rotate together to transmit torque. They are widely used in CNC lathes, machining centers, engraving machines, CNC milling machines, metallurgical machinery, mining machinery, petroleum machinery, chemical machinery, lifting machinery, transportation machinery, light industrial machinery, textile machinery, water pumps, fans, air compressors and other fields, and have a very broad market space.

[0003] The traditional processing technology of existing couplings is to go through turning, milling and broaching and then undergo overall heat treatment. This processing technology has a large material loss and a long processing cycle, so it is only suitable for small-scale production. At present, there is also a processing technology for couplings on the market that is cast. Although this processing method can adapt to mass production and can save material loss during processing, the surface of the processed coupling will have many burrs, which needs further grinding, and it is easy to produce processing errors, resulting in low production efficiency. Summary of the invention

[0004] The present invention aims to provide a steering coupling shaping device and process, which can solve the technical problems in the prior art that the coupling surface processed has many burrs and needs further grinding, and is prone to processing errors, resulting in low production efficiency.

[0005] In order to achieve the above object, the present invention adopts the following technical scheme: 1) A steering coupling shaping device, comprising an upper punch seat and a lower punch seat, wherein the upper punch seat has an upper punch rod facing the lower punch seat, the lower punch seat has a female mold embedded in the lower punch seat, and the female mold has a lower punch rod corresponding to the upper punch rod; the upper punch rod and the lower punch rod press and shape the coupling based on the operation of the female mold.

[0006] The present invention can press and shape the coupling to ensure the structure of the coupling. The designed upper punch cooperates with the female mold to press and shape the structure of the coupling to ensure the structure of the coupling. In addition, the lower punch is designed to correspond to the position of the upper punch, which is convenient for the coupling to be quickly demolded after pressing and shaping, making demolding easy and greatly improving production efficiency. At the same time, burrs on the coupling can be removed, reducing the problems of low efficiency and high cost caused by fine processing, and at the same time, the structure of the coupling can be ensured.

[0007] 2) The steering coupling shaping device according to 1), wherein: The upper punch seat includes an upper inner punch seat and an upper outer punch seat. The upper portion of the upper inner punch seat is fixedly connected to the upper driving mechanism, and the lower portion of the upper inner punch seat is embedded in the upper outer punch seat to form an integrated structure for fixing the upper punch rod.

[0008] The present invention stabilizes the operation of the upper punch seat by combining the upper inner punch seat and the upper outer punch seat, and plays a supporting and fixing role on the upper punch rod, thereby ensuring the stability of the coupling during the pressing and shaping process and ensuring the structure of the coupling.

[0009] 3) The steering coupling shaping device according to 2), wherein: The upper punch rod includes an upper inner punch and an upper outer punch. The top of the upper outer punch is fixed to the bottom of the upper outer punch seat. The top of the upper inner punch is fixed to the bottom of the upper inner punch seat. The upper inner punch passes through the upper outer punch pad between the upper inner punch seat and the upper outer punch seat, and passes through the upper outer punch seat in turn to be fixedly connected with the upper outer punch.

[0010] The present invention fixes the upper outer punch by the upper outer punch seat, and fixes the upper inner punch by the upper inner punch seat, so as to achieve the upper outer punch and the upper inner punch being firmly fixed. At the same time, the upper inner punch passes through the upper outer punch pad located between the upper inner punch seat and the upper outer punch seat, and in turn passes through the upper outer punch seat to be fixedly connected with the upper outer punch, so as to achieve the firm fixation of the upper punch rod, ensure the stability of the upper punch rod, and ensure the structure of the coupling during the pressing and shaping.

[0011] 4) The steering coupling shaping device according to 1), wherein: The female mold is sleeved with a female mold cover and a female mold base on the peripheral side. The lower part of the female mold is fixed to the female mold base through bolts and nuts, and the upper part of the female mold is detachably fixed through the female mold cover.

[0012] The present invention uses a female mold base to fix the female mold that is matched with the shaping, and fixes the female mold to the female mold base through bolts and nuts to achieve support and limit the female mold, and a female mold pressure cover sleeved on the circumference of the female mold abuts against the female mold base, and the upper part of the female mold is detachably fixed by the female mold pressure cover to maintain the stability of the female mold, thereby ensuring the structure of the coupling during the pressing and shaping.

[0013] 5) The steering coupling shaping device according to 1), wherein: A lower punch pad is provided at the bottom of the lower punch seat, and the lower punch pad is fixed on a support base. A lower driving mechanism connected with the lower punch rod is installed below the support base.

[0014] The present invention adopts a lower punch pad to connect the lower punch seat and the supporting base to achieve the impact in the pressing process to buffer the lower punch seat. After pressing and shaping, the lower punch rod is driven by the lower driving mechanism to move upward and pass through the female mold to eject the pressed and shaped coupling, which is convenient for demolding the coupling.

[0015] 6) The steering coupling shaping device according to 5), wherein: The lower punch includes a lower punch and a core rod. The lower punch is arranged between the female mold and the lower punch seat. An ejection channel is arranged in the lower punch. A moving channel for reciprocating movement of the core rod is arranged in the lower punch seat. The moving channel is connected with the ejection channel, and the ejection channel is connected with the shaping cavity corresponding to the female mold.

[0016] The present invention uses a core rod to pass through the moving channel, the ejection channel and the shaping cavity in sequence, so as to eject the coupling that has been pressed and shaped in the shaping cavity. In this way, the coupling can be well ejected, the coupling can be easily demoulded, not easily damaged, and the structure of the coupling can be maintained.

[0017] 7) A steering coupling shaping process, applied to the steering coupling shaping device described in 1) to 6) of the above scheme, comprises the following steps: Step 1: Place the sintered coupling blank in the shaping cavity of the female mold, control the upper driving mechanism, drive the upper punch to press the coupling, and shape and extrude the coupling blank under the cooperation of the upper punch and the female mold; Step 2: After the coupling is shaped and extruded in step 1, the lower driving mechanism is controlled to drive the core rod of the lower punch to move toward the shaping cavity of the female mold, and the shaped coupling blank is quickly ejected; Step 3: Install the shaped coupling blank on a CNC lathe to process the outer circle, end face and holes of the coupling blank into a finished coupling product.

[0018] 8) The steering coupling shaping process according to 7), wherein: In step one, the sintered coupling blank is placed in a shaping cavity for extrusion to ensure that the thickness accuracy of the teeth of the coupling reaches 0.03 mm.

[0019] 9) The steering coupling shaping process according to 7), wherein: Before step one, a pressing step is also included, in which the uniformly mixed powder is loaded into a pre-made mold, and then pressed into a coupling blank on a fully automatic powder metallurgy special hydraulic press, the pressure is controlled within the range of 400-600Mpa, and the pressed coupling blank is sintered.

[0020] 10) The steering coupling shaping process according to 7), wherein: The sintering is carried out in nitrogen for 10 to 25 minutes at a sintering temperature of 800 to 1200° C., so that the hardness of the coupling blank reaches HRB70.

[0021] Compared with the prior art, the present invention also has the following technical effects: Compared with the prior art, the present invention has an upper punch rod designed to cooperate with the female mold to press and shape the structure of the coupling, thereby ensuring the structure of the coupling. At the same time, the female mold is detachably connected, so different female molds can be placed according to different couplings, and the adaptability is wide. In addition, a lower punch rod is designed to correspond to the position of the upper punch rod, which is convenient for the coupling to be quickly demolded after pressing and shaping, making demolding easy and greatly improving production efficiency. At the same time, burrs on the coupling can be removed, reducing the problems of low efficiency and high cost caused by fine processing, and at the same time, the structure of the coupling can be ensured.

[0022] Secondly, compared with the prior art, the present invention adopts a pressing method to press the evenly mixed powder into a coupling in a mold, so that the coupling has good dimensional consistency, which can greatly reduce the difficulty of assembly, and replace the previous mechanical processing technology with powder metallurgy technology, so that the manufacturing cost is reduced by more than 50%, the material utilization rate is large, and high-strength alloy materials are used; at the same time, the powder metallurgy process is used for manufacturing, which is convenient for mass production. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural schematic diagram of the steering coupling shaping device of the present invention. DETAILED DESCRIPTION

[0024] The following is further described in detail through specific implementation methods: The figure marks in the drawings of the specification include: upper inner punch seat 1, upper inner punch 2, upper outer punch pad 3, upper outer punch seat 4, upper outer punch 5, female die 6, female die cover 7, female die base 8, lower punch 9, lower punch seat 10, lower punch pad 11, and core rod 12.

[0025] For example, see Figure 1 As shown, the steering coupling shaping device in this embodiment includes an upper punch seat and a lower punch seat 10, the upper punch seat has an upper punch rod facing the lower punch seat 10, the lower punch seat 10 has a female mold 6 embedded in the lower punch seat 10, and the female mold 6 has a lower punch 9 rod corresponding to the upper punch rod; the upper punch rod and the lower punch 9 rod are pressed and shaped on the coupling during the operation of the female mold 6.

[0026] This embodiment can press and shape the coupling to ensure the structure of the coupling. The designed upper punch rod cooperates with the female mold 6 to press and shape the structure of the coupling to ensure the structure of the coupling. In addition, the lower punch 9 rod is designed to correspond to the position of the upper punch rod, which is convenient for the coupling to be quickly demolded after pressing and shaping, making demolding easy and greatly improving production efficiency. At the same time, the burrs on the coupling can be removed, reducing the problems of low efficiency and high cost caused by fine processing, etc., and at the same time, the structure of the coupling can be ensured.

[0027] Specifically, the upper punch seat includes an upper inner punch seat 1 and an upper outer punch seat 4. The upper portion of the upper inner punch seat 1 is fixedly connected to the upper driving mechanism, and the lower portion of the upper inner punch seat 1 is embedded in the upper outer punch seat 4 to form an integrated structure for fixing the upper punch rod. The upper inner punch seat 1 and the upper outer punch seat 4 are combined to stabilize the operation of the upper punch seat and support and fix the upper punch rod, thereby ensuring the stability of the coupling during the pressing and shaping process and ensuring the structure of the coupling.

[0028] The upper punch rod includes an upper inner punch 2 and an upper outer punch 5. The top of the upper outer punch 5 is fixed to the bottom of the upper outer punch seat 4. The top of the upper inner punch 2 is fixed to the bottom of the upper inner punch seat 1. The upper inner punch 2 passes through the upper outer punch pad 3 located between the upper inner punch seat 1 and the upper outer punch seat 4, and passes through the upper outer punch seat 4 in turn to be fixedly connected with the upper outer punch 5.

[0029] In this embodiment, the upper outer punch 5 is fixed by the upper outer punch seat 4, and the upper inner punch 2 is fixed by the upper inner punch seat 1, so as to achieve a firm fixation of the upper outer punch 5 and the upper inner punch. At the same time, the upper inner punch 2 passes through the upper outer punch pad 3 between the upper inner punch seat 1 and the upper outer punch seat 4, and in turn passes through the upper outer punch seat 4 to be fixedly connected with the upper outer punch 5, so as to achieve a firm fixation of the upper punch rod, ensure the stability of the upper punch rod, and ensure the structure of the coupling during the pressing and shaping.

[0030] Secondly, a female mold cover 7 and a female mold base 8 are sleeved on the peripheral side of the female mold 6, the lower part of the female mold 6 is fixed on the female mold base 8 by bolts and nuts, and the upper part of the female mold 6 is detachably fixed by the female mold cover 7. The female mold 6 that is matched and shaped is fixed by the female mold base 8, and the female mold 6 is fixed to the female mold base 8 by bolts and nuts to support and limit the female mold 6, and the female mold cover 7 sleeved on the peripheral side of the female mold 6 abuts on the female mold base 8, and the upper part of the female mold 6 is detachably fixed by the female mold cover 7 to maintain the stability of the female mold 6, thereby ensuring the structure of the coupling in the pressing and shaping.

[0031] Meanwhile, in the present embodiment, a lower punch pad 11 is provided at the bottom of the lower punch seat 10, and the lower punch pad 11 is fixed on the support base, and a lower driving mechanism connected with the lower punch 9 rod is installed below the support base.

[0032] This embodiment adopts a lower punch pad 11 to connect the lower punch seat 10 and the support base to achieve a buffering effect on the lower punch seat 10 during the impact during the pressing process. After pressing and shaping, the lower punch 9 is driven by the lower driving mechanism to move upward and pass through the female mold 6 to eject the pressed and shaped coupling, which is convenient for demolding the coupling.

[0033] Moreover, in this embodiment, the lower punch 9 includes a lower punch 9 and a core rod 12. The lower punch 9 is arranged between the female mold 6 and the lower punch seat 10. An ejection channel is provided in the lower punch 9. A moving channel for reciprocating movement of the core rod 12 is provided in the lower punch seat 10. The moving channel is connected to the ejection channel, and the ejection channel is connected to the shaping cavity corresponding to the female mold 6.

[0034] In this embodiment, the core rod 12 is passed through the moving channel, the ejection channel and the shaping cavity in sequence, so that the coupling that has been pressed and shaped in the shaping cavity can be ejected. In this way, the coupling can be ejected well, making it easy to demold the coupling, not easy to be damaged, and maintaining the structure of the coupling.

[0035] The steering coupling shaping process, applied to the steering coupling shaping device of the above scheme, comprises the following steps: Step 1: Place the sintered coupling blank in the shaping cavity of the female mold 6, control the upper driving mechanism, drive the upper punch to press the coupling, and shape and extrude the coupling blank under the cooperation of the upper punch and the female mold 6. Place the sintered coupling blank in the shaping cavity for extrusion to ensure that the thickness accuracy of the tooth portion of the coupling reaches 0.03 mm; Step 2: After the coupling is shaped and extruded in step 1, the lower driving mechanism is controlled to drive the core rod 12 of the lower punch 9 to move toward the shaping cavity of the female mold 6, and quickly eject the shaped coupling blank; Step 3: Install the shaped coupling blank on a CNC lathe to process the outer circle, end face and holes of the coupling blank into a finished coupling product.

[0036] At the same time, before step 1, a pressing step is also included, in which the uniformly mixed powder is loaded into a pre-made mold, and then pressed into a coupling blank on a fully automatic powder metallurgy special hydraulic press, the pressure is controlled within the range of 400-600Mpa, and the pressed coupling blank is sintered. In this embodiment, nitrogen sintering is used for sintering in nitrogen for 10 to 25 minutes, and the sintering temperature is 800 to 1200° C., so that the hardness of the coupling blank reaches HRB70.

[0037] The designed upper punch rod cooperates with the female mold 6 to press and shape the structure of the coupling to ensure the structure of the coupling. At the same time, the female mold 6 is detachably connected. Therefore, different female molds 6 can be placed according to different couplings, and the adaptability is wide. In addition, the lower punch 9 rod is designed to correspond to the position of the upper punch rod, which is convenient for the coupling to be quickly demolded after pressing and shaping, making demolding easy, greatly improving production efficiency, and at the same time, it can remove burrs on the coupling, reduce low efficiency and high cost problems caused by fine processing, etc., and at the same time, it can ensure the structure of the coupling.

[0038] The coupling is formed by pressing the evenly mixed powder into a mold, so that the coupling has good dimensional consistency, which can greatly reduce the difficulty of assembly. The powder metallurgy process replaces the previous mechanical processing process, which reduces the manufacturing cost by more than 50%, has a high material utilization rate, and uses high-strength alloy materials. At the same time, the powder metallurgy process is used for manufacturing, which is convenient for mass production.

[0039] The above are only embodiments of the present invention, and the common knowledge such as the known specific technical solutions and / or characteristics in the solution are not described in detail here. It should be pointed out that for those skilled in the art, several modifications and improvements can be made without departing from the technical solution of the present invention, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. Steering coupling shaping device, characterized in that: It includes an upper punch seat and a lower punch seat, wherein the upper punch seat has an upper punch rod facing the lower punch seat, the lower punch seat has a female mold embedded in the lower punch seat, and the female mold has a lower punch rod corresponding to the upper punch rod; the upper punch rod and the lower punch rod are used to press and shape the coupling during the operation of the female mold.

2. The steering coupling shaping device according to claim 1, characterized in that: The upper punch seat includes an upper inner punch seat and an upper outer punch seat. The upper portion of the upper inner punch seat is fixedly connected to the upper driving mechanism, and the lower portion of the upper inner punch seat is embedded in the upper outer punch seat to form an integrated structure for fixing the upper punch rod.

3. The steering coupling shaping device according to claim 2, characterized in that: The upper punch rod includes an upper inner punch and an upper outer punch. The top of the upper outer punch is fixed to the bottom of the upper outer punch seat. The top of the upper inner punch is fixed to the bottom of the upper inner punch seat. The upper inner punch passes through the upper outer punch pad between the upper inner punch seat and the upper outer punch seat, and passes through the upper outer punch seat in turn to be fixedly connected with the upper outer punch.

4. The steering coupling shaping device according to claim 1, characterized in that: The female mold is sleeved with a female mold cover and a female mold base on the peripheral side. The lower part of the female mold is fixed to the female mold base through bolts and nuts, and the upper part of the female mold is detachably fixed through the female mold cover.

5. The steering coupling shaping device according to claim 1, characterized in that: A lower punch pad is provided at the bottom of the lower punch seat, and the lower punch pad is fixed on a support base. A lower driving mechanism connected with the lower punch rod is installed below the support base.

6. The steering coupling shaping device according to claim 5, characterized in that: The lower punch includes a lower punch and a core rod. The lower punch is arranged between the female mold and the lower punch seat. An ejection channel is arranged in the lower punch. A moving channel for reciprocating movement of the core rod is arranged in the lower punch seat. The moving channel is connected with the ejection channel, and the ejection channel is connected with the shaping cavity corresponding to the female mold.

7. A steering coupling shaping process, applied to any one of the steering coupling shaping devices according to claims 1 to 6, characterized in that: The following steps are involved: Step 1: Place the sintered coupling blank in the shaping cavity of the female mold, control the upper driving mechanism, drive the upper punch to press the coupling, and shape and extrude the coupling blank under the cooperation of the upper punch and the female mold; Step 2: After the coupling is shaped and extruded in step 1, the lower driving mechanism is controlled to drive the core rod of the lower punch to move toward the shaping cavity of the female mold, and the shaped coupling blank is quickly ejected; Step 3: Install the shaped coupling blank on a CNC lathe to process the outer circle, end face and holes of the coupling blank into a finished coupling product.

8. The steering coupling shaping device according to claim 7, characterized in that: In step one, the sintered coupling blank is placed in a shaping cavity for extrusion to ensure that the thickness accuracy of the teeth of the coupling reaches 0.03 mm.

9. The steering coupling shaping device according to claim 7, characterized in that: Before step one, a pressing step is also included, in which the uniformly mixed powder is loaded into a pre-made mold, and then pressed into a coupling blank on a fully automatic powder metallurgy special hydraulic press, the pressure is controlled within the range of 400-600Mpa, and the pressed coupling blank is sintered.

10. The steering coupling shaping device according to claim 7, characterized in that: The sintering is carried out in nitrogen for 10 to 25 minutes at a sintering temperature of 800 to 1200° C., so that the hardness of the coupling blank reaches HRB70.

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