Milling machine and stand column workpiece clamp thereof
By designing a column workpiece fixture, and using a combination of chuck and clamp to fix the upper and lower parts of the column workpiece, the problem of column workpiece offset during milling is solved, achieving stable machining and high yield.
Patent Information
- Application Number
- CN202422965382.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-03
- Publication Date
- 2025-11-04
- Estimated Expiration
- 2034-12-03
AI Technical Summary
The standardized fixtures on existing milling machines cannot effectively fix the vertical position of column workpieces when machining them, which can easily lead to offset and misalignment during the machining process and affect the yield.
A column workpiece fixture was designed, including a base, a chuck, a bearing top plate, and clamps. The bottom end of the column workpiece is fixed by the chuck, and the column body is clamped by the clamps. The combination structure of the bearing top plate and the clamps is used to fix the column workpiece vertically and vertically, ensuring its stability.
It effectively prevents the upper end of the column workpiece from shifting during processing, improves the yield rate, avoids milling misalignment damage, and is adaptable to column workpieces of different heights, enhancing processing stability and safety.
Smart Images
Figure CN223506734U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of workpiece clamps of milling machines, in particular to a milling machine and a column workpiece clamp thereof. BACKGROUND
[0002] A milling machine is a machine tool for processing various surfaces of workpieces by using a milling cutter, and is a common device in the hardware processing industry. During processing, a clamp is used to clamp and fix a workpiece on the table surface of the workbench, so that the workpiece can be kept stable at the specified position during processing, preventing the workpiece from moving during processing and ensuring the processing accuracy and efficiency of the workpiece.
[0003] The standard clamp used on a conventional milling machine generally clamps and fixes a workpiece in the horizontal direction on the plane of the workbench. For a column workpiece, it needs to be erected on the workbench for processing, such as face milling. If a conventional standard clamp is used, only one end of the column workpiece can be fixed, and the upper end is prone to deviation during processing, which affects the stability and causes the column workpiece to be damaged due to milling misalignment, thereby affecting the yield. SUMMARY
[0004] Therefore, the purpose of the utility model is to provide a milling machine and a column workpiece clamp thereof to solve the above problems.
[0005] To achieve the above purpose, the utility model adopts the following technical scheme:
[0006] The utility model provides a column workpiece clamp of milling machine, the column workpiece clamp includes base, chuck, bearing top plate and two opposite clamps. The chuck is fixed on the base and is used to fix the bottom end of the column workpiece. The bearing top plate is suspended above the base by a connecting vertical rod arranged on the base. The bearing top plate is provided with a column workpiece clearance opening above the chuck, which is used to pass the column body of the column workpiece through the bearing top plate. The clamp includes a jaw block, a fixed block and a lead screw. The fixed block is attached to the bearing top plate. The fixed block is provided with an internal thread hole corresponding to the lead screw. The lead screw passes through the internal thread hole of the fixed block and is connected to the jaw block, which is used to move the jaw block towards the column workpiece clearance opening. The two opposite jaw blocks approach each other to clamp the column body of the column workpiece between them.
[0007] Preferably, the connecting vertical rod is a telescopic rod, and the number of connecting vertical rods is four. The four connecting vertical rods are arranged around the chuck. The bearing top plate can be lifted or lowered by moving closer to or away from the base through the connecting vertical rod.
[0008] Preferably, the column workpiece clearance opening is a circular opening with its center axis passing through the center of the chuck. The lead screws in the two clamps are located on the same radial direction of the column workpiece clearance opening.
[0009] Preferably, a notch is formed on the jaw face of the jaw block towards the column workpiece allowing opening, and the notch is a V-shaped continuous fold surface concave towards the fixed block.
[0010] Preferably, an anti-skid pattern is arranged on the notch of the jaw block.
[0011] Preferably, the chuck is a soft jaw chuck with a silica gel pad surface on the jaw.
[0012] The utility model also provides a milling machine, it includes milling machine operation platform and the column workpiece clamp as described above, the base of column workpiece clamp is equipped with screw groove, the base of column workpiece clamp is attached on the milling machine operation platform through screw.
[0013] The technical effects achieved by the technical scheme of the utility model include:
[0014] The column workpiece clamp sets the bearing top plate and the two oppositely arranged clamps borne by the bearing top plate above the base, clamps the column body of the column workpiece by the two clamps, and fixes the bottom end of the column workpiece in cooperation with the chuck on the base, so that the column body and the bottom end of the column workpiece are both fixed, the column workpiece can be kept in a stable vertical state for subsequent milling operation on the upper end face by the milling machine, unlike the existing standardized clamp which only fixes the column workpiece horizontally on one plane, the column workpiece clamp keeps the column workpiece in a balanced force state, the upper end of the column workpiece is not easy to deviate, and the column workpiece is prevented from being damaged due to milling misalignment, so that the yield of the column workpiece is ensured. BRIEF DESCRIPTION OF DRAWINGS
[0015] Figure 1 The structure diagram of the column workpiece clamp provided by the utility model embodiment is shown in the figure.
[0016] Figure 2 The schematic diagram of the column workpiece clamp when clamping the column workpiece is shown in the figure.
[0017] Figure 3 The side view of the column workpiece clamp is shown in the figure.
[0018] Figure 4 The structure diagram of the clamp in the column workpiece clamp is shown in the figure.
[0019] Each reference sign in the above figure is as follows:
[0020] Base 1, screw groove 10a;
[0021] Chuck 2;
[0022] Bearing top plate 3, column workpiece allowing opening 30, connecting vertical rod 31;
[0023] Clamp 4, jaw block 41, jaw face 411, notch 412, fixed block 42, lead screw 43;
[0024] Column workpiece 100;
[0025] Milling machine workbench 200. DETAILED DESCRIPTION
[0026] In order to make the purpose, technical scheme and advantages of the present application more clear, the specific embodiments of the present application will be described in detail below with reference to the drawings. The examples of these preferred embodiments are illustrated in the drawings. The embodiments of the present application shown in the drawings and described according to the drawings are merely exemplary, and the present application is not limited to these embodiments.
[0027] Here, in order to avoid obscuring the present application by unnecessary details, only structures and / or processing steps closely related to the scheme according to the present application are shown in the drawings, and other details that are not closely related are omitted.
[0028] Referring to Figure 1 and Figure 2 The milling machine column workpiece clamp provided by the embodiments of the present application comprises a base 1, a chuck 2, a bearing top plate 3, and two oppositely arranged clamps 4.
[0029] The chuck 2 is fixed on the base 1 and is used to fix the bottom end of the column workpiece 100;
[0030] The bearing top plate 3 is suspended in the air above the base 1 through a connecting vertical rod 31 arranged on the base 1, and the bearing top plate 3 is provided with a column workpiece accommodation opening 30 in the area above the chuck 2, which is used to allow the column body of the column workpiece 100 to pass through the bearing top plate 3;
[0031] The clamp 4 comprises a jaw block 41, a fixed block 42, and a lead screw 43. The fixed block 42 is attached to the bearing top plate 3, and the fixed block 42 is provided with an internal threaded hole corresponding to the lead screw 43. The lead screw 43 passes through the internal threaded hole of the fixed block 42 and is connected to the jaw block 41, which is used to push the jaw block 41 to move towards the column workpiece accommodation opening 30. The two oppositely arranged jaw blocks 41 approach each other to clamp the column body of the column workpiece 100 located between the two jaw blocks 41.
[0032] The use process of the milling machine column workpiece clamp is as follows:
[0033] The column workpiece 100 to be processed is placed into the column workpiece accommodation opening 30 on the bearing top plate 3, and the bottom end of the column workpiece 100 is inserted into the chuck 2 below through the column workpiece accommodation opening 30, and the bottom end of the column workpiece 100 is clamped and fixed by the chuck 2, and then the two clamping jaws 4 are operated respectively to move the two jaw blocks 41 towards each other, and the two jaw blocks 41 gradually approach each other until they abut against the column body of the column workpiece 100 located in the column workpiece accommodation opening 30, and the two jaw blocks 41 can clamp and fix the column body of the column workpiece 100 by cooperating with each other, so that the column workpiece 100 is fixed at both the top and bottom ends, and the column workpiece 100 can be kept in a stable vertical state for subsequent milling and other machining operations on the upper end face.
[0034] Unlike the existing standardized clamps that only fix the column workpiece 100 horizontally in one plane, the column workpiece clamp can fix both the bottom end and the column body of the column workpiece 100, maintain the balance of the force, and prevent the upper end of the column workpiece 100 from deviating during the milling of the upper end face of the column workpiece 100 by the milling machine, thereby avoiding damage to the workpiece due to milling misalignment and ensuring the yield of the column workpiece 100.
[0035] Furthermore, unlike the existing standard clamps that only fix the column workpiece 100 horizontally at a single point, the column workpiece clamp can distribute the applied force on the column workpiece 100, thereby avoiding excessive force on the column workpiece 100 at a single point due to clamping and causing deformation and damage to the surface of the column workpiece 100.
[0036] In combination with Figure 3 As shown in FIG. 1, the connecting vertical rods 31 are telescopic rods, and the number of the connecting vertical rods 31 is four, which are arranged around the chuck 2, and the bearing top plate 3 can be lifted or lowered relative to the base 1 through the connecting vertical rods 31. The telescopic rods are used as the connecting vertical rods 31, which can adjust the length of the connecting vertical rods 31 to change the distance between the bearing top plate 3 and the base 1, change the position of the column body of the column workpiece 100 clamped and fixed by the two clamping jaws 4 according to the requirements, and make the two clamping jaws 4 adapt to column workpieces 100 of different heights.
[0037] Specifically, the shape of the column workpiece accommodation opening 30 needs to adapt to the conventional cylindrical column workpiece 100, which is a circular opening with its center axis passing through the center of the chuck 2, and the lead screws 43 in the two clamping jaws 4 are located on the same radial direction of the column workpiece accommodation opening 30. The bearing top plate 3 is parallel to the base 1.
[0038] In combination with Figure 4As shown, a notch 412 is formed on the jaw surface 411 of the jaw block 41 facing the clearance opening 30 of the column workpiece. The notch 412 is a V-shaped continuous folded surface that is concave inward from the jaw surface 411 towards the fixing block 42, that is, away from the clearance opening 30 of the column workpiece. The V-shaped folded surface of the notch 412 can be tangent to the arc surface of the column workpiece 100. When the jaw block 41 clamps the column workpiece 100, the column body of the column workpiece 100 is inserted into the notch 412, which restricts the horizontal displacement of the column body of the column workpiece 100 and improves its stability.
[0039] Furthermore, the notch 412 of the jaw block 41 is provided with anti-slip texture. The anti-slip texture can be formed by knurling process, which can moderately increase the friction between the jaw surface 411 and the column body of the column workpiece 100, and prevent the column body of the column workpiece 100 from sliding relative to each other.
[0040] Similarly, the chuck 2 is a soft-claw chuck with a silicone pad on the claw, which can increase the friction between the claw and the bottom of the column workpiece 100, and the highly elastic silicone material can protect the column workpiece 100 and prevent damage to the surface of the column workpiece 100.
[0041] This utility model embodiment also provides a milling machine, which includes a milling machine worktable 200 and a column workpiece fixture as described above. The base 1 of the column workpiece fixture is provided with a screw groove 10a, and the base 1 of the column workpiece fixture is fastened to the milling machine worktable 200 by screws.
[0042] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
[0043] The above description is only a specific embodiment of this application. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this application, and these improvements and modifications should also be considered within the scope of protection of this application.
Claims
1. A column workpiece clamp for a milling machine, characterized by, The column workpiece clamp comprises: a base (1); a chuck (2) fixed on the base (1) for fixing the bottom end of a column workpiece (100); a bearing top plate (3) suspended above the base (1) by connecting vertical rods (31) arranged on the base (1), the bearing top plate (3) being provided with a column workpiece accommodation opening (30) above the chuck (2) for passing the column body of the column workpiece (100) through the bearing top plate (3); two oppositely arranged clamps (4) comprising a jaw block (41), a fixed block (42) and a lead screw (43), the fixed block (42) being locked on the bearing top plate (3), the fixed block (42) being provided with an internal threaded hole corresponding to the lead screw (43), the lead screw (43) passing through the internal threaded hole of the fixed block (42) and being connected to the jaw block (41) for pushing the jaw block (41) to move towards the column workpiece accommodation opening (30), the column body of the column workpiece (100) being clamped between the two oppositely arranged jaw blocks (41) by moving the two jaw blocks (41) towards each other.
2. The column workpiece fixture of claim 1, wherein, The connecting vertical rods (31) are telescopic rods, and the number of the connecting vertical rods (31) is four, the four connecting vertical rods (31) being arranged around the chuck (2), and the bearing top plate (3) being capable of moving up and down by approaching or moving away from the base (1) through the connecting vertical rods (31).
3. The column workpiece fixture of claim 1 wherein, The column workpiece accommodation opening (30) is a circular opening with its central axis passing through the center of the chuck (2), and the lead screws (43) of the two clamps (4) are located on the same radial direction of the column workpiece accommodation opening (30).
4. The column workpiece clamp of claim 1 wherein, The jaw face (411) of the jaw block (41) towards the column workpiece accommodation opening (30) is formed with a notch (412), the notch (412) being a V-shaped continuous fold surface recessed towards the fixed block (42).
5. The column workpiece clamp of claim 4, wherein, The notch (412) of the jaw block (41) is provided with an anti-skid pattern.
6. The column workpiece clamp of claim 1 wherein, The chuck (2) is a soft jaw chuck with a silica gel pad on the jaw.
7. A milling machine characterized by, The column workpiece clamp comprises: a base (1); a chuck (2) fixed on the base (1) for fixing the bottom end of a column workpiece (100); a bearing top plate (3) suspended above the base (1) by connecting vertical rods (31) arranged on the base (1), the bearing top plate (3) being provided with a column workpiece accommodation opening (30) above the chuck (2) for passing the column body of the column workpiece (100) through the bearing top plate (3); two oppositely arranged clamps (4) comprising a jaw block (41), a fixed block (42) and a lead screw (43), the fixed block (42) being locked on the bearing top plate (3), the fixed block (42) being provided with an internal threaded hole corresponding to the lead screw (43), the lead screw (43) passing through the internal threaded hole of the fixed block (42) and being connected to the jaw block (41) for pushing the jaw block (41) to move towards the column workpiece accommodation opening (30), the column body of the column workpiece (100) being clamped between the two oppositely arranged jaw blocks (41) by moving the two jaw blocks (41) towards each other. The connecting vertical rods (31) are telescopic rods, and the number of the connecting vertical rods (31) is four, the four connecting vertical rods (31) being arranged around the chuck (2), and the bearing top plate (3) being capable of moving up and down by approaching or moving away from the base (1) through the connecting vertical rods (31). The column workpiece accommodation opening (30) is a circular opening with its central axis passing through the center of the chuck (2), and the lead screws (43) of the two clamps (4) are located on the same radial direction of the column workpiece accommodation opening (30). The jaw face (411) of the jaw block (41) towards the column workpiece accommodation opening (30) is formed with a notch (412), the notch (412) being a V-shaped continuous fold surface recessed towards the fixed block (42). The notch (412) of the jaw block (41) is provided with an anti-skid pattern. The chuck (2) is a soft jaw chuck with a silica gel pad on the jaw. The column workpiece clamp comprises: a base (1); a chuck (2) fixed on the base (1) for fixing the bottom end of a column workpiece (100); a bearing top plate (3) suspended above the base (1) by connecting vertical rods (31) arranged on the base (1), the bearing top plate (3) being provided with a column workpiece accommodation opening (30) above the chuck (2) for passing the column body of the column workpiece (100) through the bearing top plate (3); two oppositely arranged clamps (4) comprising a jaw block (41), a fixed block (42) and a lead screw (43), the fixed block (42) being locked on the bearing top plate (3), the fixed block (42) being provided with an internal threaded hole corresponding to the lead screw (43), the lead screw (43) passing through the internal threaded hole of the fixed block (42) and being connected to the jaw block (41) for pushing the jaw block (41) to move towards the column workpiece accommodation opening (30), the column body of the column workpiece (100) being clamped between the two oppositely arranged jaw blocks (41) by moving the two jaw blocks (41) towards each other. The connecting vertical rods (31) are telescopic rods, and the number of the connecting vertical rods (31) is four, the four connecting vertical rods (31) being arranged around the chuck (2), and the bearing top plate (3) being capable of moving up and down by approaching or moving away from the base (1) through the connecting vertical rods (31). The column workpiece accommodation opening (30) is a circular opening with its central axis passing through the center of the chuck (2), and the lead screws (43) of the two clamps (4) are located on the same radial direction of the column workpiece accommodation opening (30). The jaw face (411) of the jaw block (41) towards the column workpiece accommodation opening (30) is formed with a notch (412), the notch (412) being a V-shaped continuous fold surface recessed towards the fixed block (42). The notch (412) of the jaw block (41) is provided with an anti-skid pattern. The chuck (2) is a soft jaw chuck with a silica gel pad on the jaw.