Fixing tool for workpiece end face milling equipment
By designing transverse and longitudinal clamping mechanisms and vibration damping devices, the problem of unstable clamping of container corner castings during end face milling was solved, and stable clamping of the workpiece and improved precision were achieved.
Patent Information
- Application Number
- CN202422907269.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-27
- Publication Date
- 2025-10-03
- Estimated Expiration
- 2034-11-27
AI Technical Summary
Existing container corner castings are easily deformed during end face milling and are not clamped securely, resulting in insufficient machining accuracy.
A fixed fixture for workpiece end face milling equipment is designed. It adopts transverse and longitudinal clamping mechanisms. Through the cooperation of push pieces and tightening blocks, the synchronous longitudinal and transverse clamping preload force of the workpiece is achieved. In combination with vibration-damping gaskets and vibration-damping sleeves, the machining vibration is reduced.
The clamping stability of the workpiece is improved, the longitudinal clamping preload is reduced, the processing accuracy is prevented from decreasing, and the milling accuracy is improved.
Smart Images
Figure CN223406514U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of auxiliary mechanisms for workpiece milling processing equipment, in particular to a fixed tooling for workpiece end face milling processing equipment. Background Art
[0002] At present, the end face milling processing equipment used for container corner castings mainly adopts a double-sided milling machine. The container corner fittings are fixed to the corresponding fixtures through the corresponding robots. The fixtures with the workpieces installed are then transferred through the spindle heads of the double-sided milling machine through the mobile worktable to complete the milling processing of the two end faces of the workpiece at one time.
[0003] Existing equipment for milling the end faces of container corner castings typically uses a fixture that includes a workpiece-securing fixture base and a downward-pressing cylinder mounted atop the fixture base. A downward-pressing block, mounted on the piston rod end of the downward-pressing cylinder, cooperates with the fixture base to clamp the workpiece from top to bottom. Because container corner castings are typically hollow and have corresponding locating holes on their three end faces, and because a relatively high preload is required to ensure secure clamping, container corner castings are prone to deformation during the clamping process, creating significant challenges.
[0004] Therefore, the research purpose of this utility model is to design a fixed tooling for workpiece end milling processing equipment that can simultaneously form longitudinal and transverse clamping pre-tightening force on the workpiece, thereby enhancing the clamping stability of the workpiece and reducing the longitudinal clamping pre-tightening force of the workpiece. Summary of the Invention
[0005] In response to the technical problems existing in the above-mentioned prior art, the present invention provides a fixed fixture for workpiece end face milling processing equipment, which can effectively solve the technical problems existing in the above-mentioned prior art.
[0006] The technical solution of the utility model is:
[0007] A fixed fixture for workpiece end face milling processing equipment, comprising
[0008] The tool fixing seat is fixed to the movable workbench of the corresponding double-sided milling machine;
[0009] The cam is fixedly mounted on the support frame, and the cam is fixedly mounted on the support frame, and the cam is fixedly mounted on the support frame, and the cam is fixedly mounted on the support frame.
[0010] A longitudinal clamping mechanism, wherein a group of corresponding plug-in holes are respectively provided on both sides of the tooling base, and the longitudinal clamping mechanism includes a limiting rod inserted into the plug-in holes, and a downward pressure cylinder arranged on the upper side of the tooling base, and corresponding buffer springs are respectively fixedly installed in the plug-in holes at the bottom of the limiting rod.
[0011] The tool fixing seat is fixed upward with at least two corresponding vertical arms, the tops of the vertical arms are extended laterally outward and fixed with corresponding guide rails, corresponding fixed beams are movably mounted on the guide rails, and the downward pressure cylinder is fixed to the fixed beams.
[0012] A corresponding beam driving cylinder is fixedly connected to the fixed beam, and a piston rod end of the beam driving cylinder is connected to the corresponding vertical arm.
[0013] The piston rod end of the downward-pressing oil cylinder is fixedly connected with a corresponding crimping piece downwardly, and the piston rod of the downward-pressing oil cylinder extends to drive the crimping piece to be fixedly crimped on the upper end surface of the workpiece.
[0014] The bottom side of the press-fitting piece is fixed downwardly with a corresponding abutment plate through a corresponding vibration-damping washer, and a plurality of corresponding vibration-damping microholes are evenly distributed on the vibration-damping washer.
[0015] A plurality of corresponding guide holes are evenly distributed on the crimping part, and corresponding vibration-damping sleeves are respectively provided at positions corresponding to the guide holes on the vibration-damping gasket. The vibration-damping sleeves extend through and extend to the outside of the corresponding guide holes and are fixedly filled with a plurality of corresponding vibration-damping damping particles.
[0016] A gap is provided between the outer side wall of the vibration-damping sleeve and the guide hole.
[0017] The two sides of the tightening block are respectively fixed with corresponding abutment pieces by means of bolt locking, and the abutment pieces are made of engineering plastics.
[0018] Advantages of this utility model:
[0019] 1) When fixing the corner casting of the container, the utility model first drives the push member to move upward by the oil cylinder to drive the push member to move synchronously inward, thereby facilitating the fixed installation of the corner casting of the container. When the corner casting of the container is fixed to the transverse clamping mechanism, the positioning hole provided on the corner casting of the container is sleeved on the periphery of the U-shaped clamping block; after the workpiece is installed in place, the downward pressure oil cylinder is moved downward to form a downward pressure clamping on the workpiece until the limiting rod is pressed down to be flush with the upper end surface of the tooling base. At this time, the buffer spring is compressed to clamp the workpiece which is not provided with a positioning hole. The position of the hole forms an upward push, thereby forming a uniform and reasonable longitudinal clamping pre-tightening force on the workpiece; finally, the push member drives the oil cylinder to drive the push member downward to drive the tightening block to move outward synchronously, thereby tightening it to the positioning hole of the container corner casting, which can simultaneously form longitudinal and transverse clamping pre-tightening force on the workpiece, so as to strengthen the clamping stability of the container corner casting and reduce the longitudinal clamping pre-tightening force of the container corner, thereby ensuring the clamping stability of the workpiece and effectively preventing the problem of machining accuracy not meeting the design requirements due to excessive longitudinal clamping pre-tightening force.
[0020] 2) Since the processing surface of double-sided milling is relatively large, the vibration generated by the processing is more obvious. For this reason, the bottom side of the crimping part of the utility model is fixed downward with an abutment plate through the corresponding vibration-damping gasket. During the clamping process, the abutment plate directly presses the top surface of the workpiece. When the vibration generated by the processing is transmitted through the vibration-damping gasket, resonance is formed in the vibration-damping micropores, thereby forming preliminary vibration reduction; the vibration can also be partially transmitted to the vibration-damping sleeve, thereby effectively further forming vibration reduction without affecting the normal operation of the downward pressure cylinder, so as to significantly improve the milling accuracy of the product through vibration reduction. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] Figure 1 It is a structural diagram of the present utility model.
[0022] Figure 2 This is a structural diagram of a horizontal clamping mechanism installed on a tooling fixing seat.
[0023] Figure 3 for Figure 2 A partial enlarged view of part A.
[0024] Figure 4 This is the assembly cross-sectional view of the horizontal clamping mechanism.
[0025] Figure 5 This is a diagram of the usage state of the utility model.
[0026] In the accompanying drawings: tooling fixed seat 1, double-sided milling machine 2, movable workbench 3, horizontal clamping mechanism 4, tooling base 401, U-shaped clamping block 402, support plate 403, push member 404, clamping part 4041, push member driving cylinder 405, tightening block 406, limiting slide groove 4061, longitudinal clamping mechanism 5, limiting rod 501, downward pressure cylinder 502, buffer spring 503, plug-in hole 6, vertical arm 7, guide rail 8, fixed beam 9, beam driving cylinder 10, crimping part 11, workpiece 12, vibration damping gasket 13, abutment plate 14, vibration damping sleeve 15, abutment 16. DETAILED DESCRIPTION
[0027] In order to facilitate understanding by those skilled in the art, the structure of the present invention is further described in detail with reference to the following embodiments and accompanying drawings:
[0028] refer to Figure 1-5 , a fixed fixture for workpiece end face milling processing equipment, including
[0029] The tool fixing base 1 is fixedly connected to the movable workbench 3 of the corresponding double-sided milling machine 2;
[0030] The horizontal clamping mechanism 4 includes several tooling bases 401 fixedly connected to the tooling fixed seat 3 in parallel, and the middle of the tooling base 401 is fixedly installed with a U-shaped clamping block 402 with an opening facing upward, and the top of the U-shaped clamping block 402 is fixedly installed with a corresponding support plate 403. Corresponding blocking members 404 are movably installed between the two ends of the U-shaped clamping block 402, and the two sides of the blocking member 404 are respectively arranged in an inclined shape and convexly provided with a corresponding clamping portion 4041. The blocking member 404 is installed on the tooling fixed seat The blocking member driving cylinder 405 in the fixed seat 3 is driven; corresponding tightening blocks 406 are respectively installed on both sides of the blocking member 404, and the inner side of the tightening block 406 is set to an inclined surface adapted to the blocking member 404 and provided with a limiting slide groove 4061 that is clamped to the clamping portion 4041. The blocking member driving cylinder 405 drives the blocking member 404 upward, driving the tightening block 406 to move inward, and the blocking member driving cylinder 405 drives the blocking member 404 downward, driving the tightening block 406 to move outward;
[0031] The longitudinal clamping mechanism 5 has a group of corresponding plug-in holes 6 on both sides of the tooling base 401. The longitudinal clamping mechanism 5 includes a limiting rod 501 plugged into the plug-in holes 6, and a downward pressure cylinder 502 arranged on the upper side of the tooling base 401. Corresponding buffer springs 503 are fixedly installed in the plug-in holes 6 at the bottom of the limiting rod 501.
[0032] When the utility model fixes the workpiece (container corner casting) 12, first, the blocking member drives the oil cylinder 405 to drive the blocking member 404 upward to drive the tightening block 406 to move inward synchronously, thereby facilitating the fixed installation of the workpiece 12. When the workpiece 12 is fixed to the horizontal clamping mechanism 4, the positioning hole provided on the workpiece 12 is sleeved on the periphery of the U-shaped clamping block 402; after the workpiece 12 is installed in place, the downward pressure oil cylinder 502 moves downward to form a downward pressure clamping on the workpiece 12 until the limiting rod 501 is pressed down to be flush with the upper end surface of the tooling base 401. At this time, the buffer spring 503 is compressed to tighten the workpiece 12. The position where the positioning hole is not provided on the workpiece 12 forms an upward push, thereby forming a uniform and reasonable longitudinal clamping pre-tightening force on the workpiece 12; finally, the push member drives the oil cylinder 405 to drive the push member 404 downward to drive the tightening block 406 to move outward synchronously, thereby tightening it to the positioning hole of the workpiece 12, and can simultaneously form longitudinal and transverse clamping pre-tightening forces on the workpiece 12 to strengthen the clamping stability of the workpiece 12 and reduce the longitudinal clamping pre-tightening force of the workpiece 12, thereby ensuring the clamping stability of the workpiece 12 while effectively preventing the problem of machining accuracy not meeting the design requirements due to excessive longitudinal clamping pre-tightening force.
[0033] At least two corresponding vertical arms 7 are fixedly connected upward to the fixture fixing base 3. The tops of the vertical arms 7 extend laterally outward and are fixedly connected to corresponding guide rails 8. Corresponding fixed crossbeams 9 are movably mounted on the guide rails 8. The downward pressure cylinder 502 is fixedly connected to the fixed crossbeams 9. Corresponding crossbeam driving cylinders 10 are fixedly connected to the fixed crossbeams 9. The piston rod ends of the crossbeam driving cylinders 10 are connected to the corresponding vertical arms 7.
[0034] The piston rod end of the downward-pressing oil cylinder 502 is fixed downwardly to a corresponding crimping piece 11, and the piston rod of the downward-pressing oil cylinder 502 extends to drive the crimping piece 11 to be fixedly crimped onto the upper end face of the workpiece 12. The bottom side of the crimping piece 11 is fixed downwardly to a corresponding abutment plate 14 via a corresponding vibration-damping gasket 13, and a plurality of corresponding micro-holes for vibration reduction are evenly distributed on the vibration-damping gasket 13. A plurality of corresponding guide holes are evenly distributed on the crimping piece 11, and the vibration-damping gasket 13 is respectively provided with corresponding vibration-damping sleeves 15 at positions corresponding to the guide holes. The vibration-damping sleeves 15 extend through to the outside of the corresponding guide hole and are fixedly filled with a plurality of corresponding damping particles for vibration reduction. There is a gap between the outer wall of the vibration-damping sleeve 15 and the guide hole.
[0035] Since the processing surface of double-sided milling is relatively large, the vibration generated by the processing is more obvious. For this reason, the bottom side of the crimping part 11 of the utility model is fixed downward with an abutment plate 14 through the corresponding vibration-damping gasket 13. During the clamping process, the abutment plate 14 directly presses the top surface of the workpiece 12. When the vibration generated by the processing is transmitted through the vibration-damping gasket 13, resonance is formed in the vibration-damping micropores, thereby forming preliminary vibration reduction; the vibration can also be partially transmitted to the vibration-damping sleeve 15, thereby effectively further forming vibration reduction without affecting the normal operation of the downward pressure cylinder, so as to significantly improve the milling accuracy of the product through vibration reduction.
[0036] The two sides of the tightening block 406 are respectively fixed with corresponding abutment members 16 by means of bolt locking. The abutment members 16 are made of engineering plastics.
[0037] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.
Claims
1. A fixed fixture for workpiece end face milling equipment, characterized in that: include A tool fixing seat (1) is fixedly connected to a movable workbench (3) of a corresponding double-sided milling machine (2); The horizontal clamping mechanism (4) comprises a plurality of tooling bases (401) fixedly connected to the tooling fixing seat (1) in parallel, wherein a U-shaped clamping block (402) with an opening facing upward is fixedly installed in the middle of each tooling base (401), a corresponding support plate (403) is fixedly installed on the top of each U-shaped clamping block (402), and a corresponding push-blocking member (404) is movably installed between the two ends of the U-shaped clamping block (402), and the two sides of the push-blocking member (404) are respectively arranged in an inclined shape and convexly provided with a corresponding clamping portion (4041), and the push-blocking member (404) is installed on the tooling fixing seat. (1) The push-block driving oil cylinder (405) drives the push-block (404); corresponding tightening blocks (406) are respectively installed on both sides of the push-block (404); the inner side of the tightening block (406) is set to an inclined surface shape adapted to the push-block (404) and provided with a limiting slide groove (4061) connected to the clamping portion (4041); the push-block driving oil cylinder (405) drives the push-block (404) upward, driving the tightening block (406) to move inward; the push-block driving oil cylinder (405) drives the push-block (404) downward, driving the tightening block (406) to move outward; A longitudinal clamping mechanism (5), wherein a group of corresponding plug-in holes (6) are respectively provided on both sides of the tooling base (401), and the longitudinal clamping mechanism (5) includes a limiting rod (501) plugged into the plug-in holes (6), and a downward pressure cylinder (502) provided on the upper side of the tooling base (401), and corresponding buffer springs (503) are respectively fixedly installed in the plug-in holes (6) at the bottom of the limiting rod (501).
2. A fixture for workpiece end face milling equipment according to claim 1, characterized in that: The tool fixing seat (1) is fixedly connected upwardly with at least two corresponding vertical arms (7), the tops of the vertical arms (7) are extended outwardly and fixedly connected with corresponding guide rails (8), the guide rails (8) are movably mounted with corresponding fixed beams (9), and the downward pressure cylinder (502) is fixedly connected to the fixed beams (9).
3. A fixture for workpiece end face milling equipment according to claim 2, characterized in that: A corresponding beam driving cylinder (10) is fixedly connected to the fixed beam (9), and a piston rod end of the beam driving cylinder (10) is connected to a corresponding vertical arm (7).
4. The fixing fixture for workpiece end face milling equipment according to claim 1, characterized in that: The piston rod end of the downward-pressing oil cylinder (502) is fixedly connected to a corresponding crimping piece (11) facing downward, and the piston rod of the downward-pressing oil cylinder (502) extends to drive the crimping piece (11) to be fixedly crimped onto the upper end surface of the workpiece (12).
5. The fixing fixture for workpiece end face milling equipment according to claim 4, characterized in that: The bottom side of the crimping piece (11) is fixed downwardly to a corresponding abutment plate (14) via a corresponding vibration-damping washer (13), and a plurality of corresponding vibration-damping micropores are evenly distributed on the vibration-damping washer (13).
6. A fixture for workpiece end face milling equipment according to claim 5, characterized in that: The crimping piece (11) is evenly distributed with a plurality of corresponding guide holes, and the vibration-damping gasket (13) is provided with corresponding vibration-damping sleeves (15) at positions corresponding to the guide holes. The vibration-damping sleeves (15) extend through the outer sides of the corresponding guide holes and are fixedly filled with a plurality of corresponding vibration-damping damping particles.
7. A fixture for workpiece end face milling equipment according to claim 6, characterized in that: A gap is provided between the outer side wall of the vibration-damping sleeve (15) and the guide hole.
8. The fixture for workpiece end face milling equipment according to claim 1, characterized in that: The two sides of the tightening block (406) are respectively fixed with corresponding abutment members (16) by means of bolt locking, and the abutment members (16) are made of engineering plastics.