Clamp for machining reciprocating lever
The specialized clamping device for machining connecting rods addresses the instability and precision issues by using a support and pressure mechanism to stabilize the connecting column, reducing breakage and enhancing machining precision.
Patent Information
- Application Number
- CN202422021237.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-19
- Publication Date
- 2025-07-15
- Estimated Expiration
- 2034-08-19
AI Technical Summary
When existing clamping tools are processed with long reciprocating rods, they are prone to breaking the welding points between the connecting rod and the connecting column due to the punching impact force, which is insufficient clamping stability and affecting the processing accuracy and efficiency.
A clamp is designed, using support blocks and compression blocks to clamp the connecting column, combining positioning blocks and limiting parts, and driving the compression blocks and lifting blocks through the oil cylinder to achieve stable clamping of the connecting rods and connection columns, and adapt to different models through the V-shaped grooves to improve clamping stability and accuracy.
It reduces the fracture phenomenon of connecting rods and connecting columns, improves clamping stability and processing accuracy, and enhances the applicability and overall use efficiency of the fixture.
Smart Images
Figure CN223098665U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of metal machine tool fixture equipment, and in particular to a fixture for machining reciprocating rods. Background Art
[0002] A machine tool fixture is a device on a machine tool used to clamp workpieces and guide tools. It refers to a fixture specifically designed for a certain process of a certain workpiece. 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 machining movement of the tool and the machine tool during machining.
[0003] During the machining process of various motor parts, it is necessary to set up suitable fixtures for each part. Among them, the finished reciprocating rod 3 is as Figure 1 shown. The reciprocating rod 3 is composed of a connecting rod 32 and a connecting column 31 which are coaxially welded. The connecting rod 32 is flatly arranged and a connecting ring 33 is integrally arranged at the end. The connecting ring 33 is elliptically arranged and has a through hole 331 in the middle. The connecting column 31 is hollow along the axial direction, and a through hole 311 communicating with the internal hollow is opened on the connecting column 31. The semi-finished reciprocating rod 3 needs to be machined on the inner and outer walls of the through hole 311 and the connecting ring 33 to become a finished reciprocating rod.
[0004] Since conventional clamping tools are currently used, usually the plane of the clamping block on the clamping tool squeezes and fixes the opposite two planes of the connecting rod. However, due to the long length of the reciprocating rod, when the connecting rod on the reciprocating rod is clamped and a hole is drilled at one end of the connecting column, the impact force during the drilling process is likely to cause the welded joint between the connecting rod and the connecting column to break, and there is still room for improvement. Utility Model Content
[0005] In order to reduce the breakage between the connecting column and the connecting rod on the reciprocating rod and improve the clamping stability of the clamping device for the connecting rod, this application provides a fixture for machining reciprocating rods.
[0006] A fixture for machining reciprocating rods provided by this application adopts the following technical solutions:
[0007] A fixture for machining reciprocating rods includes an installation table, a first oil cylinder is connected to the installation table, a pressing block moving towards the installation table is rotatably connected to the piston rod of the first oil cylinder. A pressing groove for abutting against the connecting column is opened on the side of the pressing block close to the installation table. A supporting block is fixedly connected to the side of the installation table close to the pressing block. A placing groove for placing the connecting column is opened on the side of the supporting block away from the installation table. The pressing block and the supporting block cooperate with each other to press the connecting column on the reciprocating rod.
[0008] By adopting the above technical solution, the support block and the pressing block are arranged such that the connecting column on the reciprocating rod can be placed in the placement groove on the support block. When the pressing block is located on the support block, the connecting column can be simultaneously located in the placement groove and the pressing groove, thereby cooperating to clamp the connecting column, reducing the phenomenon that the connection between the connecting rod and the connecting column breaks when the milling cutter impacts the connecting column, and improving the clamping stability of the fixture for the reciprocating rod.
[0009] Optionally, a second oil cylinder is connected to the mounting table, and a lifting block for supporting the connecting ring on the reciprocating rod is fixedly connected to one end of the piston rod of the second oil cylinder facing the pressing block.
[0010] By adopting the above technical solution, with the setting of the lifting block, when the reciprocating rod is placed in the placement groove, the second oil cylinder can drive the lifting block to move to abut against the connecting rod on the reciprocating rod, thereby supporting part of the reciprocating rod, and at the same time, it can also further adjust the placement flatness of the connecting rod on the reciprocating rod, improving the accuracy of the through-hole on the connecting column.
[0011] Optionally, an abutting block that abuts against the side of the connecting ring close to the mounting table is fixedly connected to the side of the lifting block away from the mounting table, and the abutting block is arc-shaped.
[0012] By adopting the above technical solution, the setting of the abutting block, on the one hand, can support the connecting rod on the reciprocating rod; on the other hand, the abutting block is arc-shaped, which can match the connecting ring on the reciprocating rod more appropriately, thereby increasing the distance between the connecting ring and the lifting block and reducing the wear of the lifting block during the operation of the milling cutter.
[0013] Optionally, a positioning block is fixedly connected to the side of the support block away from the mounting table, and the positioning block abuts against the end of the connecting column away from the connecting rod.
[0014] By adopting the above technical solution, the setting of the positioning block enables the end of the connecting column on the reciprocating rod with the through-hole to abut against the positioning block, thereby increasing the clamping stability of the connecting column, reducing the impact force generated by the milling cutter on the connecting column, and increasing the accuracy of the formed through-hole.
[0015] Optionally, a limiting member that abuts against the end of the connecting column is fixedly connected to the mounting table, and the limiting member is located between the abutting block and the support block and is used to limit the connecting column from moving away from the positioning block.
[0016] By adopting the above technical solution, the setting of the limiting member can limit the connecting column in the placement groove from moving towards the lifting block, enabling the end of the connecting column with the through-hole to abut tightly against the positioning block more closely, thereby increasing the connection structure between the connecting column and the positioning block.
[0017] Optionally, both the pressing groove and the placing groove are arranged in a V shape.
[0018] By adopting the above technical solution, the pressing groove and the placing groove are arranged in a V shape, enabling the pressing block and the supporting block to fix reciprocating rods of different models, thereby increasing the applicability of the fixture and improving the overall usage efficiency of the fixture.
[0019] Optionally, a regulating valve is fixedly connected to the side of the mounting table away from the positioning block, and the regulating valve is electrically connected to the first oil cylinder and the second oil cylinder respectively.
[0020] By adopting the above technical solution, the setting of the regulating valve can adjust the moving amplitude of the piston rods of the first oil cylinder and the second oil cylinder, enabling the second oil cylinder to drive the lifting block to adjust the flatness of the connecting ring, and also capable of adjusting the pressing block to press the connecting column on the supporting block, improving the clamping stability of the entire reciprocating rod.
[0021] Optionally, a plurality of lifting rings are fixedly connected to the side of the mounting table close to the positioning block, and the number of the lifting rings is four, which are respectively located at the four corners of the mounting table.
[0022] By adopting the above technical solution, the number of the lifting rings is four and they are respectively located at the four corners of the mounting table one by one, facilitating the hoisting device to hook the lifting rings, thereby moving or rotating the entire mounting table.
[0023] Optionally, the number of the first oil cylinder, the second oil cylinder, the pressing block and the abutting block is two each, and they are respectively located on the opposite sides of the positioning block one by one.
[0024] By adopting the above technical solution, the number of the first oil cylinder, the second oil cylinder, the pressing block and the abutting block is two, and they are arranged symmetrically with respect to the positioning block as the axis of symmetry, enabling there to be two sets of fixtures on the opposite side walls of the positioning block, so that two reciprocating rods can be processed simultaneously, improving the overall processing efficiency of the machine tool.
[0025] In summary, the present application includes at least the following beneficial technical effects:
[0026] 1. The setting of the supporting block and the pressing block enables the connecting column to be located in the placing groove and the pressing groove at the same time, thereby cooperating to clamp the connecting column, reducing the phenomenon that the connection between the connecting rod and the connecting column breaks when the milling cutter impacts the connecting column, and improving the clamping stability of the fixture for the reciprocating rod;
[0027] 2. The setting of the positioning block enables the end of the connecting column on the reciprocating rod with the through hole to abut against the positioning block, thereby increasing the clamping stability of the connecting column, reducing the impact force generated by the milling cutter on the connecting column, and increasing the accuracy of the formed through hole;
[0028] 3. The pressing groove and the placing groove are arranged in a V shape, enabling the pressing block and the supporting block to fix reciprocating rods of different models, thereby increasing the applicability of the fixture and improving the overall use efficiency of the fixture. Description of the Drawings
[0029] Figure 1 It is a schematic structural diagram of the finished reciprocating rod in the embodiment of the present application.
[0030] Figure 2 It is an overall structural diagram of a fixture for processing a reciprocating rod in the embodiment of the present application.
[0031] Figure 3 It is a partial structural diagram of a fixture for processing a reciprocating rod in the embodiment of the present application.
[0032] Figure 4 It is Figure 3 an enlarged view of part A in
[0033] Figure 5 It is a partial back view of a fixture for processing a reciprocating rod in the embodiment of the present application.
[0034] Description of the Reference Numerals: 1, mounting base; 2, mounting table; 21, supporting block; 211, placing groove; 212, positioning block; 22, first oil cylinder; 221, pressing block; 2211, pressing groove; 222, rotating rod; 23, second oil cylinder; 231, lifting block; 2311, abutting block; 24, limiting member; 241, limiting block; 242, limiting handle; 25, lifting ring; 26, regulating valve; 3, reciprocating rod; 31, connecting column; 311, through hole; 32, connecting rod; 33, connecting ring; 331, through hole. Detailed Embodiment
[0035] The following Figures 1-5 further describes the present application in detail.
[0036] The embodiment of the present application discloses a fixture for processing a reciprocating rod. Referring to Figure 1 and Figure 2 , a fixture for processing a reciprocating rod includes a mounting table 2 and a mounting base 1. The number of the mounting bases 1 is two and they are respectively rotatably connected to both ends of the mounting table 2 in a one-to-one correspondence, so that the mounting table 2 can rotate circumferentially around the connection line between the two mounting bases 1 as an axis.
[0037] Referring to Figures 2 to 4, a support block 21 is fixedly connected to the installation table 2. A placement groove 211 is formed on the side of the support block 21 away from the installation table 2, facilitating the placement of the connecting column 31 on the reciprocating rod 3 into the placement groove 211. A first oil cylinder 22 is fixedly connected to the side of the installation table 2 close to the support block 21. The moving direction of the piston rod of the first oil cylinder 22 is perpendicular to the installation table 2. A pressing block 221 is rotatably connected to the piston rod of the first oil cylinder 22. The pressing block 221 is located above the support block 21 to press the support block 21. The pressing block 221 is perpendicular to the piston rod of the first oil cylinder 22. A rotating rod 222 is provided on the pressing block 221. The two ends of the rotating rod 222 are respectively rotatably connected to the first oil cylinder 22 and the pressing block 221. Thus, when the piston rod of the first oil cylinder 22 moves, the rotating rod 222 can drive the pressing block 221 to press towards the support block 21.
[0038] Refer to Figure 3 and Figure 4 , a pressing groove 2211 is formed on the side of the pressing block 221 close to the installation table 2. When the pressing block 221 presses the support block 21, the connecting column 31 on the reciprocating rod 3 is simultaneously located in the pressing groove 2211 and the placement groove 211, enabling the pressing block 221 and the support block 21 to cooperate with each other to clamp the connecting column 31. Both the pressing groove 2211 and the placement groove 211 are V-shaped, enabling the pressing groove 2211 and the placement groove 211 to fix connecting columns 31 of different models.
[0039] Combined with Figure 3 and Figure 4 , a second oil cylinder 23 is fixedly connected to the installation table 2. The piston rod on the second oil cylinder 23 moves towards the pressing block 221. An elevation block 231 is fixedly connected to the end of the piston rod on the second oil cylinder 23, used to support the connecting ring 33 on the reciprocating rod 3. An abutting block 2311 is fixedly connected to the side of the elevation block 231 away from the installation table 2. The abutting block 2311 is arc-shaped and matches the arc on the connecting ring 33. The side of the abutting block 2311 away from the elevation block 231 abuts against the connecting ring 33 on the reciprocating rod 3, thus being able to support the connecting ring 33 on the reciprocating rod 3 and reducing the wear of the elevation block 231 by the milling cutter.
[0040] Combined with Figure 3 and Figure 4, on one side of the mounting table 2 close to the support block 21, a limiting member 24 is fixedly connected. The limiting member 24 includes a limiting block 241 fixedly connected to the mounting table 2 and a limiting handle 242 connected to the limiting block 241. Both the limiting block 241 and the limiting handle 242 are located between the abutting block 2311 and the support block 21. The limiting handle 242 is clamped on the side of the limiting block 241 away from the mounting table 2. When the connecting column 31 is located in the pressing groove 2211 and the placing groove 211, the limiting handle 242 abuts against the end of the connecting column 31 on the side close to the abutting block 2311, thereby restricting the connecting column 31 from moving towards the abutting block 2311.
[0041] Refer to Figure 2 and Figure 3 , on the side of the support block 21 away from the mounting table 2, a positioning block 212 is fixedly connected. The positioning block 212 is located in the middle of the support block 21. The end of the connecting column 31 in the placing groove 211 away from the connecting ring 33 abuts tightly against the positioning block 212, thereby increasing the clamping stability of the connecting column 31.
[0042] Refer to Figure 2 and Figure 3 , in the embodiment of the present application, the number of the first oil cylinder 22, the pressing block 221, the rotating rod 222, the second oil cylinder 23, the abutting block 2311, the lifting block 231 and the limiting member 24 is two each. They are all arranged along the axial direction of the connecting column 31 and are relatively arranged with the positioning block 212 as the center, so that two reciprocating rods 3 can be clamped on the mounting table 2 for processing at the same time. On one side of the mounting table 2 close to the positioning block 212, a lifting ring 25 is fixedly connected. The number of the lifting rings 25 is four and they are respectively located at the four corners of the mounting table 2, which is convenient for the hoisting equipment to move the entire mounting table 2.
[0043] Refer to Figure 4 and Figure 5 , on the side of the mounting table 2 away from the support block 21, a regulating valve 26 is fixedly connected. The regulating valve 26 is located between the two first oil cylinders 22 and the second oil cylinders 23 and is electrically connected to them respectively, which is convenient for the regulating valve 26 to control the moving amplitude of the first oil cylinder 22 and the second oil cylinder 23.
[0044] The implementation principle of the fixture for processing the reciprocating rod in the embodiment of the present application is as follows: First, place the reciprocating rod 3 in the placing groove 211 on the support block 21. At this time, the regulating valve 26 controls the slight movement of the second oil cylinder 23, thereby improving the flatness of the connecting ring 33. Then, the first oil cylinder 22 drives the pressing block 221 to move. The pressing block 221 and the support block 21 cooperate with each other to clamp the connecting column 31 on the reciprocating rod 3. Then, the two ends of the connecting column 31 respectively abut against the positioning block 212 and the limiting block 241. At this time, the milling cutter starts to process the reciprocating rod 3.
[0045] The above are all preferred embodiments of this application, and the protection scope of this application is not limited thereby. Therefore, all equivalent changes made according to the structure, shape, and principle of this application shall be covered within the protection scope of this application.
Claims
1. A fixture for processing a reciprocating rod, characterized in that: It includes an installation table (2), a first oil cylinder (22) is connected to the installation table (2), a pressing block (221) that moves towards the installation table (2) is rotatably connected to the piston rod of the first oil cylinder (22), a pressing groove (2211) that abuts against a connecting column (31) is formed on one side of the pressing block (221) close to the installation table (2), a supporting block (21) is fixedly connected to one side of the installation table (2) close to the pressing block (221), a placing groove (211) for placing the connecting column (31) is formed on one side of the supporting block (21) away from the installation table (2), and the pressing block (221) and the supporting block (21) cooperate with each other to press the connecting column (31) on the reciprocating rod (3).
2. The fixture for processing a reciprocating rod according to claim 1, wherein: A second oil cylinder (23) is connected to the installation table (2), and a lifting block (231) for supporting a connecting ring (33) on the reciprocating rod (3) is fixedly connected to one end of the piston rod of the second oil cylinder (23) facing the pressing block (221).
3. The fixture for processing a reciprocating rod according to claim 2, characterized in that: An abutting block (2311) that abuts against one side of the connecting ring (33) close to the installation table (2) is fixedly connected to one side of the lifting block (231) away from the installation table (2), and the abutting block (2311) is arc-shaped.
4. A fixture for machining a reciprocating rod according to claim 3, characterized in that: A positioning block (212) is fixedly connected to one side of the supporting block (21) away from the installation table (2), and the positioning block (212) abuts against one end of the connecting column (31) away from the connecting rod (32).
5. A fixture for machining a reciprocating rod according to claim 4, characterized in that: A limiting member (24) that abuts against the end of the connecting column (31) is fixedly connected to the installation table (2), and the limiting member (24) is located between the abutting block (2311) and the supporting block (21) and is used to limit the connecting column (31) from moving towards the side away from the positioning block (212).
6. A fixture for processing a reciprocating rod according to claim 1, characterized in that: Both the pressing groove (2211) and the placing groove (211) are V-shaped.
7. A fixture for processing a reciprocating rod according to claim 4, characterized in that: A regulating valve (26) is fixedly connected to one side of the installation table (2) away from the positioning block (212), and the regulating valve (26) is electrically connected to the first oil cylinder (22) and the second oil cylinder (23) respectively.
8. A fixture for processing a reciprocating rod according to claim 7, characterized in that: A plurality of lifting rings (25) are fixedly connected to one side of the installation table (2) close to the positioning block (212), and the number of the lifting rings (25) is four and they are respectively located at the four corners of the installation table (2).
9. A fixture for processing a reciprocating rod according to claim 5, characterized in that: The numbers of the first oil cylinder (22), the second oil cylinder (23), the pressing block (221) and the abutting block (2311) are all two and they are respectively located on opposite sides of the positioning block (212) in a one-to-one correspondence.