Multi-workpiece synchronous clamping seat of milling machine

Abstract

The utility model discloses a kind of multi-workpiece synchronous clamping seats of milling machine, it includes mounting seat, screw rod and transmission part. Two parallelly arranged installation grooves are opened in mounting seat, rotatable screw rod is arranged in each installation groove, two screw rods are mutually parallel, and each screw rod is respectively connected with multiple pairs of sliding blocks by nut sleeved on screw rod, sliding block is slidably connected in installation groove, the rotation direction of corresponding nut in pair of sliding blocks is opposite, so that two sliding blocks are synchronously opposite close or away from each other when screw rod rotates, workpiece loading head is arranged at the top of each sliding block, transmission part includes transmission toothed belt and two gears, the front end of each screw rod is stretched out from installation groove, and corresponding gear is respectively fixed, and two gears are respectively engaged with transmission toothed belt. After operating personnel place each workpiece on corresponding pair of sliding blocks, only need to rotate one of screw rod to drive all workpiece loading head to synchronously tension each workpiece, and it is easy to operate, and it is beneficial to improve operating efficiency.

Description

Technical Field

[0001] This utility model relates to the technical field of milling machines, and in particular to a multi-workpiece synchronous clamping base for milling machines. Background Technology

[0002] When milling machines process hardware parts, small parts and small loose parts are usually fixed by the workpiece clamping tools configured on the milling machine's worktable to ensure that these workpieces remain stable during the processing before processing begins.

[0003] For hollow workpieces, many are secured by inserting the inner support chuck of an internal support fixture into the hollow cavity. During clamping, the operator typically assembles the workpiece onto the inner support chuck at the milling machine station, inserts a tapered screw into the workpiece's cavity, tightens the screw to connect with the bushing, and then activates the cylinder to pull the screw downwards, opening the inner support chuck to secure the workpiece. This installation structure is not only complex, but also requires that after each workpiece is assembled, the tapered screw must be individually tightened into each workpiece before activating the cylinder, resulting in cumbersome assembly and low work efficiency.

[0004] It is necessary to propose other new workpiece clamping tool technologies to improve the processing efficiency of the above-mentioned workpieces and provide more clamping options. Utility Model Content

[0005] In view of this, the purpose of this utility model is to provide a multi-workpiece synchronous clamping base for a milling machine to solve the above problems.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] This utility model provides a multi-workpiece synchronous clamping base for a milling machine, which includes a mounting base, a lead screw, and a transmission unit.

[0008] The mounting base has two parallel mounting slots, each containing a rotatable lead screw. The two lead screws are parallel to each other, and each lead screw is connected to multiple pairs of sliders via nuts fitted on it. The sliders are slidably connected within the mounting slots, with each pair of adjacent sliders forming a pair. The nuts in each pair of sliders have opposite directions of rotation, so that when the lead screw rotates, the two sliders move towards each other synchronously or away from each other. Each slider has a workpiece loading head at its top. The transmission unit includes a transmission toothed belt and two gears. The front end of each lead screw extends from the mounting slot and is fixed with a corresponding gear. The two gears mesh with the transmission toothed belt.

[0009] Preferably, the workpiece loading head is a column extending upward away from the slider, and the opposite side of the corresponding workpiece loading heads on the paired sliders is an arc surface.

[0010] Preferably, the bottom of the workpiece loading head is connected to a replacement plate by screws, and the replacement plate is attached to the slider by screws.

[0011] Preferably, a length scale is provided on the top surface of the mounting base, the length scale is parallel to the length direction of the lead screw, and the length scale is located next to a pair of sliders.

[0012] Preferably, a rotating handle is connected to the front end of the lead screw.

[0013] Preferably, the outer periphery of the rotating handle is provided with knurling, and the rotating handle is provided with rotation angle engravings around its circumference.

[0014] Preferably, the sliders on the two lead screws are arranged in an array.

[0015] The technical effects achieved by this utility model include:

[0016] Based on the multi-workpiece synchronous clamping base of the milling machine, the rotation of the lead screw causes the pairs of sliders on the lead screw to move away from each other synchronously. The two workpiece loading heads on each pair of sliders press against the cavity wall of the internal cavity of the workpiece to fix the workpiece. Since the two lead screws are synchronously driven by the transmission toothed belt of the transmission unit, all pairs of sliders on the two lead screws can slide synchronously, thereby enabling all workpiece loading heads to move away from each corresponding workpiece synchronously. After the operator places each workpiece on the corresponding pair of sliders, he only needs to rotate one of the lead screws to drive all pairs of sliders to synchronously tension all workpieces. Its structure is simple and easy to operate, with fewer workpiece assembly steps, which is conducive to improving work efficiency and large-scale processing operations. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the multi-workpiece synchronous clamping base for a milling machine provided in an embodiment of the present utility model;

[0018] Figure 2 For the corresponding Figure 1 A magnified view of the circular dashed box area A in the image;

[0019] Figure 3 A top view of an example workpiece being fixed in the multi-workpiece synchronous clamping fixture;

[0020] Figure 4 This is a side view of the multi-workpiece synchronous clamping base;

[0021] Figure 5 This is a schematic diagram of the rotating handle in the multi-workpiece synchronous clamping base.

[0022] The reference numerals in the above figures are as follows:

[0023] Mounting base 1, mounting slot 10, length scale 11;

[0024] 2. Lead screw, 21. Slider, 22. Inner support loading head, 221. Changing plate, 23. Rotating handle, 231. Knurling, 232. Rotation angle markings;

[0025] Transmission unit 3, transmission belt 31, gear 32;

[0026] Workpiece 400. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of this utility model clearer, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Examples of these preferred embodiments are illustrated in the drawings. The embodiments of this utility model shown in and described with reference to the drawings are merely exemplary, and this utility model is not limited to these embodiments.

[0028] To avoid obscuring the present invention with unnecessary details, only structures and / or processing steps closely related to the solution according to the present invention are shown in the accompanying drawings, while other details that are not of great importance are omitted. Workpiece 400 in the figures is exemplary and serves to clearly illustrate the working principle of the following multi-workpiece synchronous clamping base, and is not limited to the structure shown in the figures.

[0029] Reference Figure 1 As shown, this utility model embodiment provides a multi-workpiece synchronous clamping base for a milling machine, which includes a mounting base 1, a lead screw 2, and a transmission part 3.

[0030] Combination Figure 1 and Figure 2 As shown, the mounting base 1 has two parallel mounting slots 10, each slot 10 housing a rotatable lead screw 2. The two lead screws 2 are parallel to each other, and each lead screw 2 is connected to multiple pairs of sliders 21 via nuts fitted onto it. Each nut is threaded onto the lead screw 2. Figure 1 and Figure 3As shown, the slider 21 is slidably connected in the mounting groove 10. Every two adjacent sliders 21 are paired, and the corresponding nuts in the paired sliders 21 have opposite rotation directions, so that when the lead screw 2 rotates, the two sliders 21 move towards each other synchronously or move away from each other. Each slider 21 is provided with a workpiece loading head 22 at its top. The workpiece loading head 22 is used to move along the lead screw 2 with the slider 21 to abut against the cavity wall of the internal chamber of the workpiece 400. The transmission part 3 includes a transmission toothed belt 31 and two gears 32. The front end of each lead screw 2 extends out from the mounting groove 10 and is fixed with a corresponding gear 32. Outside the mounting base 1, the two gears 32 mesh with the transmission toothed belt 31 to realize synchronous transmission between the two lead screws 2.

[0031] The working principle of the multi-workpiece synchronous clamping base of the above-mentioned milling machine is as follows:

[0032] like Figure 1 and Figure 4 As shown, in the initial state, each pair of sliders 21 is in a close-to-each-other position so that the workpiece 400 with the hollow cavity can be placed on the pair of sliders 21 and fitted onto the corresponding two workpiece loading heads 22, which are located in the cavity of the workpiece 400. Then, by rotating the lead screw 2, the nut on the lead screw 2 drives the sliders 21 and their workpiece loading heads 22 to move linearly along the mounting groove 10, so that the pairs of sliders 21 with opposite screw directions can move away from each other until both workpiece loading heads 22 are pressed against the cavity wall of the inner cavity of the workpiece 400, thus combining... Figure 3 As shown, the two workpiece loading heads 22 tighten the workpiece 400 by internal support, thus fixing the workpiece 400. Since the rotation of the same lead screw 2 will drive the movement of all the sliders 21 on it, and the two lead screws 2 are synchronized through the transmission part 3, all the workpiece loading heads 22 can synchronously move away from the corresponding fixed workpieces 400. When the workpiece 400 is processed, rotating one of the lead screws 2 in the opposite direction will cause the workpiece loading heads 22 on all the pairs of sliders 21 to synchronously move closer to each other, thereby resetting to the initial state, releasing the contact with the internal cavity of the workpiece 400, and releasing the workpiece 400.

[0033] Based on the multi-workpiece synchronous clamping base of the milling machine, after the operator places each workpiece 400 on the corresponding pair of sliders 21, he only needs to rotate one of the lead screws 2 to drive the workpiece loading heads 22 of all pairs of sliders 21 to synchronously tension all workpieces 400. Its structure is simple, the production cost of the multi-workpiece synchronous clamping base is low, and its operation is simple with fewer workpiece 400 assembly steps, which is conducive to improving work efficiency and large-scale processing operations.

[0034] In this embodiment, the workpiece loading head 22 is a column extending upward away from the slider 21. The opposite side of the corresponding workpiece loading heads 22 on the paired sliders 21 is an arc surface. Since the cavity of the workpiece 400 is mostly hole-shaped, the opposite side of the workpiece loading heads 22 is the contact surface with the workpiece 400, which is adapted to the cavity contour of the conventional workpiece 400. Furthermore, the arc surface has a large contact area, avoiding damage to the workpiece 400.

[0035] Furthermore, a replacement plate 221 is connected to the bottom of the workpiece loading head 22 by screws. The replacement plate 221 is attached to the slider 21 by screws. This allows for the creation of workpiece loading heads 22 of different shapes and sizes as needed. When replacing the workpiece loading head 22, the screws connected to the replacement plate 221 are unscrewed to remove the original workpiece loading head 22. Similarly, the replacement plate 221 can be replaced with different sizes and shapes to stably place various workpieces 400. The workpiece loading head 22 and the replacement plate 221 can be adjusted at any time according to the fixing requirements derived from the size and shape of different workpieces. The forms shown in the figure are for reference only and do not represent the only implementation method.

[0036] To facilitate operators in adjusting the distance between the pairs of sliders 21 according to the size of the workpiece 400, a length scale 11 is provided on the top surface of the mounting base 1. The length scale 11 is parallel to the length direction of the lead screw 2 and is located next to the pair of sliders 21. Since all sliders 21 and the workpiece loading head 22 on them move synchronously, in this embodiment, only the length scale 11 needs to be provided at the front end adjacent to the lead screw 2.

[0037] To facilitate operators to manually turn the lead screw 2, a rotating handle 23 is connected to the front end of the lead screw 2.

[0038] like Figure 5 As shown, the outer circumference of the rotating handle 23 is provided with knurling 231, which can increase the friction when in contact with the rotating handle 23 and facilitate rotation. The rotating handle 23 is provided with rotation angle markings 232 around its circumference, which makes it convenient to observe the degree of displacement between the corresponding sliders 21 after the lead screw 2 rotates by a certain angle.

[0039] For example, the sliders 21 on the two lead screws 2 are arranged in an array, that is, the sliders 21 on the two lead screws 2 are in the same horizontal position, and the spacing between two adjacent pairs of sliders 21 on the same lead screw 2 is equal.

[0040] 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.

[0041] 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 multi-workpiece synchronous clamping base for a milling machine, characterized in that, It includes: Mounting base (1), lead screw (2), and transmission part (3), The mounting base (1) has two parallel mounting slots (10), and each mounting slot (10) is provided with a rotatable lead screw (2); Two lead screws (2) are parallel to each other. Each lead screw (2) is connected to multiple pairs of sliders (21) by nuts fitted on the lead screw (2). The sliders (21) are slidably connected in the mounting groove (10). Every two adjacent sliders (21) are paired. The corresponding nuts in the paired sliders (21) have opposite rotation directions, so that when the lead screw (2) rotates, the two sliders (21) move towards each other synchronously or away from each other. Each slider (21) is provided with a workpiece loading head (22) on its top. The transmission part (3) includes a transmission toothed belt (31) and two gears (32). The front end of each lead screw (2) extends out from the mounting groove (10) and is fixed with a corresponding gear (32). The two gears (32) mesh with the transmission toothed belt (31) respectively.

2. The multi-workpiece synchronous clamping base for a milling machine according to claim 1, characterized in that, The workpiece loading head (22) is a column extending upward away from the slider (21), and the opposite side of the workpiece loading heads (22) on the paired sliders (21) is an arc surface.

3. The multi-workpiece synchronous clamping base for a milling machine according to claim 1, characterized in that, The bottom of the workpiece loading head (22) is connected to a replacement plate (221) by screws, and the replacement plate (221) is attached to the slider (21) by screws.

4. The multi-workpiece synchronous clamping base for a milling machine according to claim 1, characterized in that, A length scale (11) is provided on the top surface of the mounting base (1). The length scale (11) is parallel to the length direction of the lead screw (2) and is located next to a pair of sliders (21).

5. The multi-workpiece synchronous clamping base for a milling machine according to claim 1, characterized in that, A rotating handle (23) is connected to the front end of the lead screw (2).

6. The multi-workpiece synchronous clamping base for a milling machine according to claim 5, characterized in that, The outer periphery of the rotating handle (23) is provided with knurling (231), and the rotating handle (23) is provided with rotation angle engraving (232) around its circumference.

7. The multi-workpiece synchronous clamping base for a milling machine according to claim 1, characterized in that, The sliders (21) on the two lead screws (2) are arranged in an array.

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