Reciprocating lever machining clamp

Abstract

The utility model relates to a reciprocating lever machining clamp, and relates to the technical field of metal machine tool clamp equipment. Each clamping piece comprises a supporting block connected to the operation table and used for placing a reciprocating rod and a fixing block connected to the operation table and used for pressing the supporting block, the number of the clamping pieces is at least two, the clamping pieces are oppositely arranged, and a driving piece located between the two opposite clamping pieces is connected to the operation table. The driving piece is connected with the two oppositely-arranged fixing blocks and drives the two fixing blocks to move towards the corresponding supporting blocks at the same time. The reciprocating lever machining device has the effect of improving the overall reciprocating lever machining efficiency of a machine tool.

Description

Technical Field

[0001] This application relates to the field of metal machine tool fixture equipment, and in particular to a reciprocating rod processing fixture. Background Art

[0002] A machine tool fixture is a device on a machine tool used to clamp workpieces and guide cutting tools. It refers to a fixture specially designed for a certain workpiece in a certain process. The machine tool contacts the positioning reference of the workpiece to determine the correct position of the workpiece in the fixture, thereby ensuring the relative correct position between the workpiece and the cutting tool and the machining movement of the machine tool during machining.

[0003] During the processing of various motor parts, it is necessary to set up suitable fixtures for each part. Among them, the finished reciprocating rod 4 is as Figure 1 shown. The reciprocating rod 4 is composed of a connecting ring 42 and a connecting column 41 welded coaxially. The connecting ring 42 is elliptical in shape and has a through hole 421 in the middle. One end of the connecting column 41 away from the connecting ring 42 is provided with a slit 411, and a through hole 412 communicating with the slit 411 is provided at the end of the connecting column 41 where the slit 411 is opened. The semi-finished reciprocating rod 4 needs to be processed for the through hole 412 and the inner and outer side walls of the connecting ring 42 to become the finished reciprocating rod 4.

[0004] The existing clamping device usually uses a single oil cylinder to drive a single pressing block to press the reciprocating rod on the supporting block. Therefore, if multiple sets of clamping devices are added to improve the processing efficiency, multiple oil cylinders need to be correspondingly increased, which increases the overall processing cost. Moreover, the space of a single machine tool is small, and it is difficult to place multiple oil cylinders, so the overall processing efficiency of a single machine tool is low and there is still room for improvement. Utility Model Content

[0005] In order to increase the processing efficiency of the reciprocating rod on the entire machine tool, this application provides a reciprocating rod processing fixture.

[0006] A reciprocating rod processing fixture provided by this application adopts the following technical solutions:

[0007] A reciprocating rod processing fixture includes an operating table, and a plurality of sets of clamping members are fixedly connected to the operating table. The clamping members include a supporting block connected to the operating table and used for placing the reciprocating rod, and a fixing block connected to the operating table and used for pressing the supporting block. The number of the clamping members is at least two and they are arranged oppositely. A driving member is connected to the operating table and located between two sets of opposite clamping members. The driving member is connected to the two oppositely arranged fixing blocks and simultaneously drives the two fixing blocks to move towards the corresponding supporting blocks.

[0008] By adopting the above technical solution, the setting of the driving member enables a single driving member to simultaneously drive two opposite fixed blocks to move towards the corresponding supporting blocks, thereby cooperating with the supporting blocks to clamp the reciprocating rod, further reducing the number of oil cylinders on the machine tool and simultaneously reducing the overall processing cost; it can drive multiple sets of clamping members to work with an appropriate number of driving members, increasing and improving the overall processing efficiency of the machine tool.

[0009] Optionally, the driving member is a lifting oil cylinder.

[0010] By adopting the above technical solution, a driving member is disclosed as a lifting oil cylinder, enabling the piston rod of a single lifting oil cylinder to simultaneously drive two fixed blocks to move up and down towards the pressing block, thereby cooperating with the supporting block to clamp the connecting column on the reciprocating rod.

[0011] Optionally, the driving member is a rotary pressing oil cylinder.

[0012] By adopting the above technical solution, a driving member is disclosed as a rotary pressing oil cylinder, enabling the piston rod of the rotary pressing oil cylinder to drive two relatively arranged fixed blocks to rotate 90 degrees circumferentially and simultaneously move away from the supporting block, thus facilitating the staff to replace the reciprocating rod after processing; it can also drive the two fixed blocks to rotate 90 degrees and press the supporting block, increasing the overall processing efficiency of the machine tool.

[0013] Optionally, a first clamping groove for placing part of the connecting column is formed on one side of the supporting block away from the operating table, and a second clamping groove for placing part of the connecting column is formed on one side of the fixed block close to the operating table. Both the first clamping groove and the second clamping groove are arranged in a V shape and cooperate with each other to clamp the connecting column.

[0014] By adopting the above technical solution, the first clamping groove and the second clamping groove are arranged in a V shape. When the fixed block and the supporting block are clamped to each other, the connecting columns on reciprocating rods of different models can be simultaneously located in the first clamping groove and the second clamping groove, thereby being able to clamp and fix reciprocating rods of different models and improving the clamping efficiency of the clamping member.

[0015] Optionally, the driving member further includes a moving oil cylinder fixedly connected to one side of the operating table close to the supporting block, and an abutting block for supporting the connecting ring on the reciprocating rod is fixedly connected to the piston rod of the moving oil cylinder.

[0016] By adopting the above technical solution, due to the setting of the abutting block, when the reciprocating rod is placed in the first clamping groove, the moving oil cylinder can drive the abutting block to move to abut against the connecting ring on the reciprocating rod, thereby supporting part of the reciprocating rod and simultaneously being able to further adjust the placement flatness of the connecting ring on the reciprocating rod, improving the accuracy of the through holes on the connecting column.

[0017] Optionally, several support columns are fixedly connected to the side of the abutting block away from the operating table, and the sides of the several support columns away from the abutting block abut against the connecting ring.

[0018] By adopting the above technical solution, two support columns are connected to the abutting block, enabling the support columns to support both ends of the connecting ring, thereby increasing the distance between the connecting ring and the abutting block and reducing the wear of the abutting block during the operation of the milling cutter.

[0019] Optionally, several first positioning blocks are fixedly connected to the operating table. The first positioning blocks are located between two opposite support blocks along the axial directions of two opposite connecting columns, and the two opposite side walls of the first positioning blocks respectively abut against the ends of the two connecting columns.

[0020] By adopting the above technical solution, the setting of the first positioning block enables the end of the connecting column on the reciprocating rod with a through hole to abut against the first positioning block, which can increase the clamping stability of the connecting column and reduce the impact force generated by the milling cutter on the connecting column.

[0021] Optionally, several second positioning blocks are fixedly connected to the side of the operating table close to the fixed block. The second positioning blocks are located between the support blocks and the first positioning blocks, and the side of the second positioning block away from the first rotating oil cylinder abuts against the outer side wall of the end of the connecting column close to the first positioning block.

[0022] By adopting the above technical solution, the setting of the second positioning block can support the connecting column from the outer side wall of the connecting column, reduce the impact force generated when the milling cutter processes the through hole on the connecting column, and improve the overall processing efficiency of the reciprocating rod and the qualified rate of the reciprocating rod.

[0023] Optionally, a tightening block is rotatably connected to the side of the support block close to the abutting block, and the end of the tightening block close to the fixed block abuts against the end of the connecting column to limit the movement of the connecting column towards the abutting block.

[0024] By adopting the above technical solution, the setting of the tightening block can limit the movement of the connecting column in the first clamping groove towards the first positioning block, enabling the end of the connecting column with a through hole to abut tightly against the first positioning block, thereby increasing the connection structure between the connecting column and the first positioning block.

[0025] Optionally, a guide rod is fixedly connected to the end of the tightening block close to the operating table. The guide rod passes through and extends to the side of the support block away from the tightening block, and the guide rod and the support block are in interference fit.

[0026] By adopting the above technical solution, the setting of the guide post enables the operator to push the guide rod when the pressing block loosens from abutting against the connecting post, so that the pressing block rotates, and the side of the pressing block close to the fixed block abuts against the connecting post, enabling timely adjustment of the tightness of the pressing block.

[0027] In summary, the present application includes at least one of the following beneficial technical effects:

[0028] 1. The setting of the driving member enables a single driving member to simultaneously drive two opposite fixed blocks to move towards the corresponding supporting blocks, thereby cooperating with the supporting blocks to clamp the reciprocating rod, further reducing the number of oil cylinders on the machine tool and simultaneously reducing the overall processing cost; enabling multiple sets of clamping members to work with an appropriate number of driving members, increasing and improving the overall processing efficiency of the machine tool;

[0029] 2. Two support columns are connected to the abutting block, enabling the support columns to support both ends of the connecting ring, thereby increasing the distance between the connecting ring and the abutting block and reducing the wear of the abutting block during the operation of the milling cutter;

[0030] 3. The setting of the guide post allows the operator to push the guide rod, causing the pressing block to rotate, and the side of the pressing block close to the fixed block abuts against the connecting post, enabling timely adjustment of the tightness of the pressing block. Description of the Drawings

[0031] Figure 1 is a schematic structural diagram of the reciprocating rod in the embodiment of the present application.

[0032] Figure 2 is an overall structural diagram of a reciprocating rod processing fixture in the embodiment of the present application.

[0033] Figure 3 is a partial exploded view of a reciprocating rod processing fixture in the embodiment of the present application.

[0034] Figure 4 is a partial structural diagram of a reciprocating rod processing fixture in the embodiment of the present application.

[0035] Description of the Reference Numerals: 1, operating platform; 11, first positioning block; 12, second positioning block; 13, regulating valve; 2, clamping member; 21, supporting block; 211, first clamping groove; 212, pressing block; 2121, guide rod; 22, fixed block; 221, second clamping groove; 3, driving member; 31, rotary pressing oil cylinder; 311, connecting block; 32, lifting oil cylinder; 33, moving oil cylinder; 331, abutting block; 3311, support column; 4, reciprocating rod; 41, connecting post; 411, gap; 412, through hole; 42, connecting ring; 421, through hole. Detailed Description of the Embodiment

[0036] The following is combined with the attachedFigures 1-4 Further details of the present application will be described below.

[0037] An embodiment of the present application discloses a processing fixture for a reciprocating rod. Referring to Figure 1 and Figure 2 , a processing fixture for a reciprocating rod includes an operating table 1. A plurality of groups of clamping members 2 are fixedly connected to the operating table 1 for clamping the reciprocating rod 4. In the embodiment of the present application, four groups of clamping members 2 are installed on the operating table 1 and are arranged in pairs opposite to each other.

[0038] Referring to Figure 2 and Figure 3 , the clamping member 2 includes a support block 21 and a fixed block 22. The support block 21 is fixedly connected to the operating table 1. A first clamping groove 211 is formed on the side of the support block 21 away from the operating table 1 for placing the connecting column 41 on a part of the reciprocating rod 4. A driving member 3 is installed on the operating table 1, and the fixed block 22 is connected to the driving member 3 so that the driving member 3 can drive the fixed block 22 to move towards the support block 21. A second clamping groove 221 is formed on the side of the fixed block 22 close to the operating table 1 for placing the connecting column 41 on a part of the reciprocating rod 4. Both the first clamping groove 211 and the second clamping groove 221 are arranged in a flat-bottom V shape, so that the support block 21 and the fixed block 22 can clamp reciprocating rods 4 of different models. The fixed block 22 and the support block 21 cooperate with each other to clamp the reciprocating rod 4 in the first clamping groove 211 and the second clamping groove 221.

[0039] Referring to Figure 3 , the driving member 3 is a rotary pressing oil cylinder 31. The rotary pressing oil cylinder 31 is fixedly connected to the operating table 1 and is located between two relatively arranged clamping members 2. A connecting block 311 is fixedly connected to the piston rod of the rotary pressing oil cylinder 31, and the piston rod of the rotary pressing oil cylinder 31 moves towards the side away from the operating table 1. The two ends of the connecting block 311 close to the rotary pressing oil cylinder 31 are respectively rotatably connected to the fixed blocks 22 on two relatively arranged clamping members 2, so that the piston rod of the rotary pressing oil cylinder 31 moves, thereby driving the connecting block 311 to rotate by 90 degrees and driving the fixed block 22 to move towards the support block 21 to clamp the reciprocating rod 4 in the first clamping groove 211 and the second clamping groove 221.

[0040] Referring to Figure 2 and Figure 3 , in the embodiment of the present application, the number of rotary pressing oil cylinders 31 is two and they are respectively located between four groups of pairwise opposite clamping members 2, so as to drive the four fixed blocks 22 on the four groups of clamping members 2 to move. In the embodiment of the present application, the driving member 3 can also be a lifting oil cylinder 32, so as to drive the fixed block 22 to move along the side close to or away from the operating table 1 to clamp the reciprocating rod 4.

[0041] Referring to Figure 3, the driving member 3 further includes a moving oil cylinder 33. The moving oil cylinder 33 is fixedly connected to the operation table 1, and the piston rod of the moving oil cylinder 33 and the piston rod of the rotary pressing oil cylinder 31 are arranged in parallel. A contact block 331 is fixedly connected to the side of the piston rod of the moving oil cylinder 33 away from the operation table 1. The moving oil cylinder 33 works to drive the contact block 331 to slightly move toward the side away from the operation table 1, so as to support the connecting ring 42 on the reciprocating rod 4.

[0042] Refer to Figure 3 , a support column 3311 is fixedly connected to the side of the contact block 331 away from the operation table 1. The number of the support columns 3311 is two and they are arranged in parallel with each other. The side of the connecting ring 42 on the reciprocating rod 4 close to the operation table 1 abuts against the support columns 3311, so as to slightly adjust the connecting ring 42 on the leveling reciprocating rod 4 and increase the processing qualification rate of the reciprocating rod 4. In the embodiment of the present application, the number of the moving oil cylinders 33 is four and they are respectively located at one end of the support block 21 one by one, so as to support the connecting rings 42 on the four groups of clamping members 2.

[0043] Refer to Figure 3 , a first positioning block 11 is fixedly connected to the side of the operation table 1 close to the support block 21. The number of the first positioning blocks 11 is two and they are respectively located between the support blocks 21 of the two groups of clamping members 2 one by one, so that the ends of the connecting columns 41 on the two reciprocating rods 4 arranged axially opposite to each other away from the connecting ring 42 abut against the two opposite side walls of the first positioning block 11, so as to increase the clamping stability of the reciprocating rod 4.

[0044] Refer to Figure 3 and Figure 4 , a second positioning block 12 is fixedly connected to the side of the operation table 1 close to the support block 21. The number of the second positioning blocks 12 is four and they are respectively located between the four groups of support blocks 21 and the first positioning block 11 one by one. The outer circumferential side wall of the end of the connecting column 41 away from the connecting ring 42 abuts tightly against the second positioning block 12, so as to support part of the connecting column 41 and reduce the impact force of the milling cutter on the connecting column 41.

[0045] Refer to Figure 3 and Figure 4, a pressing block 212 is installed on the supporting block 21. The middle part of the pressing block 212 is rotatably connected to one side of the supporting block 21 close to the abutting block 331. One side of the end of the pressing block 212 away from the operating table 1 abuts against one end of the connecting column 41 away from the first positioning block 11, thereby restricting the movement of the connecting column 41 towards the side close to the abutting block 331. A vertically arranged guide rod 2121 is fixedly connected to one end of the pressing block 212 close to the operating table 1. The guide rod 2121 extends towards the direction close to the supporting block 21 and passes through the supporting block 21 and then extends to the side of the supporting block 21 close to the first positioning block 11. The guide rod 2121 and the supporting block 21 are in interference fit. When the pressing block 212 becomes loose, the operator pushes the guide rod 2121 extending outside the supporting block 21, causing the pressing block 212 to rotate. One end of the pressing block 212 away from the operating table 1 can further abut against the connecting column 41. The pressing block 212 and the first positioning block 11 cooperate with each other to clamp the connecting column 41, reducing the movement of the connecting column 41 along the axial direction.

[0046] Refer to Figure 3 and Figure 4 , a regulating valve 13 is fixedly connected to the side of the operating table 1 away from the supporting block 21. The regulating valve 13 is located between the two rotary pressing cylinders 31 and the moving cylinder 33 and is electrically connected to them respectively, facilitating the regulating valve 13 to control the moving amplitude of the rotary pressing cylinders 31 and the moving cylinder 33.

[0047] The implementation principle of a reciprocating rod processing fixture in an embodiment of the present application is as follows: The staff first place a plurality of reciprocating rods 4 in the first clamping grooves 211 one by one, and then start the machine tool. The rotary pressing cylinder 31 drives the connecting block 311 to rotate circumferentially by ninety degrees and move towards the operating table 1, so that the fixing blocks 22 at both ends of the connecting block 311 press the connecting columns 41 on the corresponding supporting blocks 21. The moving cylinder 33 drives the supporting column 3311 to adjust the support of the connecting ring 42 on the reciprocating rod 4, and then the milling cutter processes the reciprocating rod 4 on the clamping member 2; when the processing is completed, the rotary pressing cylinder 31 drives the fixing block 22 to move up and rotate, and the fixing block 22 moves away from the supporting block 21, facilitating the staff to take away the processed reciprocating rod 4 from the supporting block 21.

[0048] The above are all the preferred embodiments of the present application, and the protection scope of the present application is not limited accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application should be covered within the protection scope of the present application.

Claims

1. A reciprocating rod processing fixture, characterized in that: The invention comprises an operating table (1), wherein a plurality of groups of clamping members (2) are fixedly connected to the operating table (1), wherein the clamping members (2) comprise a support block (21) connected to the operating table (1) and used for placing a reciprocating rod (4), and a fixed block (22) connected to the operating table (1) and used for pressing the support block (21), wherein the number of the clamping members (2) is at least two and they are arranged opposite to each other, and the operating table (1) is connected to a driving member (3) located between two groups of opposite clamping members (2), wherein the driving member (3) is connected to the two oppositely arranged fixed blocks (22) and simultaneously drives the two fixed blocks (22) to move toward the corresponding support blocks (21).

2. A reciprocating rod processing fixture according to claim 1, characterized in that: The driving member (3) is a lifting cylinder (32).

3. A reciprocating rod processing fixture according to claim 1, characterized in that: The driving member (3) is a rotating downward-pressing oil cylinder (31).

4. A reciprocating rod processing fixture according to claim 1, characterized in that: A first clamping groove (211) for placing a portion of the connecting column (41) is provided on a side of the support block (21) away from the operating table (1), and a second clamping groove (221) for placing a portion of the connecting column (41) is provided on a side of the fixed block (22) close to the operating table (1), wherein the first clamping groove (211) and the second clamping groove (221) are both arranged in a V-shape and cooperate with each other to clamp the connecting column (41).

5. A reciprocating rod processing fixture according to claim 4, characterized in that: The driving member (3) further comprises a movable oil cylinder (33) fixedly connected to a side of the operating platform (1) close to the supporting block (21), and a contact block (331) for supporting a connecting ring (42) on the reciprocating rod (4) is fixedly connected to a piston rod of the movable oil cylinder (33).

6. A reciprocating rod processing fixture according to claim 5, characterized in that: A side of the abutment block (331) away from the operating table (1) is fixedly connected to a plurality of support columns (3311), and a side of the plurality of support columns (3311) away from the abutment block (331) abuts against a connection ring (42).

7. The reciprocating rod processing fixture according to claim 5, characterized in that: A plurality of first positioning blocks (11) are fixedly connected to the operating table (1); the first positioning blocks (11) are located between two opposite supporting blocks (21) along the axial direction of two opposite connecting columns (41); and two opposite side walls of the first positioning blocks (11) respectively abut against the ends of the two connecting columns (41).

8. A reciprocating rod processing fixture according to claim 7, characterized in that: A plurality of second positioning blocks (12) are fixedly connected to a side of the operating table (1) close to the fixed block (22); the second positioning blocks (12) are located between the support block (21) and the first positioning block (11); and a side of the second positioning block (12) away from the movable cylinder (33) abuts against an outer side wall of an end of a connecting column (41) close to the first positioning block (11).

9. A reciprocating rod processing fixture according to claim 8, characterized in that: A side of the support block (21) close to the abutment block (331) is rotatably connected to a clamping block (212), and one end of the clamping block (212) close to the fixed block (22) abuts against the end of the connecting column (41) to limit the movement of the connecting column (41) towards the abutment block (331).

10. A reciprocating rod processing fixture according to claim 9, characterized in that: A guide rod (2121) is fixedly connected to one end of the abutting block (212) close to the operating table (1); the guide rod (2121) passes through and extends to a side of the supporting block (21) away from the abutting block (212); the guide rod (2121) and the supporting block (21) are in interference fit.

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