A part clamping structure

Abstract

The utility model relates to part clamping mechanical structure technical field discloses a part clamping structure, include: gear pair, at least two spiral rods and at least two clamps. Gear pair, including main gear and at least two pinions that mesh with main gear, pinion is along the circumferential interval arrangement of main gear, at least two spiral rods, each spiral rod is fixedly connected with corresponding pinion coaxially, at least two main clamps, each main clamp is respectively with corresponding spiral rod screw connection, and main clamp makes linear motion along the axial direction of spiral rod, when main gear rotates, through each pinion drive each spiral rod synchronous rotation, makes each main clamp on each spiral rod simultaneously carry out clamping or loosening to each work piece.

Description

Technical Field

[0001] This utility model relates to the field of mechanical structure technology for clamping parts, specifically a part clamping structure. Background Technology

[0002] In existing part clamping structures, common multi-workpiece clamping methods mostly employ independent drives or single-drive series transmissions. Independent drives require multiple power units, which is not only costly but also makes it difficult to guarantee synchronization between the clamps. Series transmissions, on the other hand, are prone to inconsistent clamping forces due to uneven power transmission paths, affecting the stability and consistency of clamping. Furthermore, traditional structures are mostly single-station designs, requiring individual operation when clamping multiple workpieces, resulting in low efficiency.

[0003] Therefore, there is an urgent need for a part clamping structure to solve the above problems. Utility Model Content

[0004] Based on the above, the purpose of this utility model is to provide a part clamping structure to solve the problem of low clamping efficiency when clamping multiple workpieces in existing part clamping structures.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0006] A part clamping structure, comprising:

[0007] A gear pair includes a primary gear and at least two secondary gears meshing with the primary gear, the secondary gears being arranged circumferentially spaced along the primary gear;

[0008] At least two helical rods, each of which is coaxially and fixedly connected to the corresponding auxiliary gear;

[0009] At least two main clamps, each of which is threadedly connected to a corresponding helical rod, and the main clamps move linearly along the axial direction of the helical rod;

[0010] When the main gear rotates, it drives the screw rods to rotate synchronously through the secondary gears, so that the main clamps on the screw rods can clamp or release the workpieces at the same time.

[0011] As a preferred embodiment of a part clamping structure, it further includes a support platform, the gear pair being mounted on the top of the support platform, and the main clamping fixture including a nut slider that is threadedly engaged with the helical rod, a fixed jaw, and a movable jaw. The fixed jaw is hinged to the bottom of the support platform, and the two ends of the movable jaw are respectively hinged to the fixed jaw and the nut slider. When the nut slider moves axially along the helical rod, it drives the movable jaw to rotate around the hinge point, thereby realizing the opening and closing action with the fixed jaw.

[0012] As a preferred embodiment of a part clamping structure, it further includes a guide assembly disposed between each of the nut sliders, the guide assembly being used to guide the nut sliders to move along each of the helical rods.

[0013] As a preferred embodiment of a part clamping structure, the guide assembly includes a guide rod and a guide slider. The guide rod is arranged parallel to the helical rod, and the guide slider is sleeved on the guide rod and can slide along its axial direction. The guide slider is connected to each of the nut sliders.

[0014] As a preferred embodiment of a part clamping structure, it further includes a secondary clamp, which is installed on the side of the main clamp. The opening and closing slider of the secondary clamp is connected to the opening and closing slider of the main clamp. When the opening and closing slider of the main clamp moves along the axial direction of the screw rod, it synchronously drives the opening and closing slider of the secondary clamp to move in the same direction, so that the secondary clamp and the main clamp can achieve synchronous clamping of the workpiece.

[0015] As a preferred embodiment of a part clamping structure, it further includes an adjustment component connected between the main clamp and the auxiliary clamp, the adjustment component being used to position the distance between the main clamp and the auxiliary clamp.

[0016] As a preferred embodiment of a part clamping structure, the adjustment assembly includes a connecting seat and a compensation block. The connecting seat is mounted on the opening and closing slider portion of the secondary clamp, and the compensation block is mounted on the opening and closing slider portion of the main clamp. The connecting seat and the compensation block have slots. The length direction of the slots is parallel to the distance adjustment direction between the main clamp and the secondary clamp. The slots are used to fasten and lock the relative position of the connecting seat and the compensation block by a fastening unit, thereby positioning the distance between the main clamp and the secondary clamp.

[0017] As a preferred embodiment of a part clamping structure, it further includes an auxiliary slide rail, the extension direction of which is parallel to the distance adjustment direction between the main clamp and the auxiliary clamp.

[0018] As a preferred embodiment of a part clamping structure, it further includes a drive assembly connected to the main gear, the drive assembly being used to drive the main gear.

[0019] As a preferred embodiment of a part clamping structure, the drive assembly includes a drive source and a mounting plate. The mounting plate is mounted on top of the main gear, the drive source is mounted on the mounting plate, and the output end of the drive source passes through the mounting plate and is connected to the main gear.

[0020] The beneficial effects of this invention are as follows: By evenly distributing the secondary gear along the circumference of the main gear, the power transmission is more uniform, enabling the main clamp to move synchronously in a straight line along the axial direction of the screw rod, thereby achieving simultaneous clamping or releasing of multiple workpieces. This effectively improves the consistency of clamping during the clamping process, avoids the problem of uneven clamping force, and allows multiple workpieces to be clamped simultaneously, eliminating the need for individual clamping steps and effectively improving clamping efficiency and stability. Attached Figure Description

[0021] Figure 1 This utility model provides an overall structural diagram of a part clamping structure in the first direction;

[0022] Figure 2 for Figure 1 A magnified view of part A in the diagram;

[0023] Figure 3 This utility model provides an overall structural schematic diagram of a part clamping structure in the second direction.

[0024] Figure 4 A schematic diagram showing the adjustment of the distance between the main clamp and the auxiliary clamp in this utility model;

[0025] Figure 5 for Figure 4 A magnified view of part B in the diagram.

[0026] The following are the labeling elements in the figure:

[0027] 1. Gear pair; 101. Main gear; 102. Secondary gear;

[0028] 2. Screw rod;

[0029] 3. Main clamp; 301. Nut slider; 302. Fixed gripper; 303. Movable gripper;

[0030] 4. Support platform;

[0031] 5. Guide assembly; 501. Guide rod; 502. Guide slider;

[0032] 6. Secondary clamp;

[0033] 7. Adjustment component; 701. Connecting seat; 702. Compensating block; 703. Slot; 704. Fastening unit;

[0034] 8. Auxiliary slide rail;

[0035] 9. Driver components; 901. Driver source; 902. Mounting plate. Detailed Implementation

[0036] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0037] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0038] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0039] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of description and simplification of operation, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0040] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more. Furthermore, the terms "first" and "second" are used merely for descriptive distinction and have no specific meaning.

[0041] In one embodiment of this utility model, such as Figure 1-5As shown, a part clamping structure is provided, including: a gear pair 1, at least two helical rods 2, and at least two clamps. The gear pair 1 includes a main gear 101 and at least two auxiliary gears 102 meshing with the main gear 101, the auxiliary gears 102 being arranged circumferentially spaced along the main gear 101; at least two helical rods 2, each helical rod 2 being coaxially and fixedly connected to a corresponding auxiliary gear 102; at least two main clamps 3, each main clamp 3 being threadedly connected to a corresponding helical rod 2, the main clamps 3 moving linearly along the axial direction of the helical rod 2; when the main gear 101 rotates, it drives each helical rod 2 to rotate synchronously through each auxiliary gear 102, so that each main clamp 3 on each helical rod 2 simultaneously clamps or releases each workpiece.

[0042] The part clamping structure provided by this utility model, through the uniform distribution of the secondary gear 102 along the circumference of the main gear 101, achieves more uniform power transmission, enabling the main clamp 3 to move synchronously in a straight line along the axial direction of the screw rod 2, thereby realizing the simultaneous clamping or releasing of multiple workpieces. This effectively improves the consistency of clamping during the clamping process, avoids the problem of uneven clamping force, and allows multiple workpieces to be clamped simultaneously, eliminating the need for individual clamping steps and effectively improving clamping efficiency and stability.

[0043] The part clamping structure also includes a support platform 4, with a gear pair 1 mounted on the top of the support platform 4. The main clamp 3 includes a nut slider 301 threadedly engaged with the helical rod 2, a fixed jaw 302, and a movable jaw 303. The fixed jaw 302 is hinged to the bottom of the support platform 4, and the two ends of the movable jaw 303 are hinged to the fixed jaw 302 and the nut slider 301, respectively. When the nut slider 301 moves axially along the helical rod 2, it drives the movable jaw 303 to rotate around the hinge point, realizing the opening and closing action with the fixed jaw 302.

[0044] The support platform 4 supports the gear pair 1 and the clamp, ensuring the stability of the entire structure. The nut slider 301 works in conjunction with the screw rod 2, driving the movable jaw 303 to rotate around the hinge point of the fixed jaw 302, thereby realizing the opening and closing action of the jaw. The fixed jaw 302 is hinged to the support platform 4, ensuring the stability of the fulcrum during clamping, improving the accuracy of clamping, and avoiding shaking during the clamping process.

[0045] The part clamping structure also includes a guide assembly 5, which is disposed between each nut slider 301. The guide assembly 5 ensures that the nut slider 301 is constrained by the guide rod 501 during movement, and moves stably along the axial direction of the screw rod 2, thereby avoiding deviation or wobbling and improving clamping accuracy and structural stability.

[0046] Specifically, the guide assembly 5 includes a guide rod 501 and a guide slider 502. The guide rod 501 can be a smooth rod, and it is arranged parallel to the helical rod 2. The guide slider 502 is sleeved on the guide rod 501 and can slide along its axial direction. The guide slider 502 is connected to each nut slider 301. By connecting the guide slider 502 to multiple nut sliders 301, the synchronization of the nut sliders 301 is improved, thereby enhancing clamping consistency.

[0047] The part clamping structure also includes a secondary clamp 6, which is mounted to the side of the main clamp 3. The opening and closing slider of the secondary clamp 6 is connected to the opening and closing slider of the main clamp 3. The threaded rod corresponding to the secondary clamp 6 is a smooth rod, allowing the opening and closing movement to proceed normally. When the opening and closing slider of the main clamp 3 moves axially along the screw rod 2, it synchronously drives the opening and closing slider of the secondary clamp 6 to move in the same direction, enabling the secondary clamp 6 and the main clamp 3 to achieve synchronous clamping of the workpiece. This effectively increases the clamping range, improves clamping stability, and thus improves clamping applicability and efficiency. Moreover, the synchronous linkage structure avoids the problem of asynchronous actions during multi-point clamping, thereby improving clamping accuracy and operational reliability.

[0048] The part clamping structure also includes an adjustment assembly 7 connected between the main clamp 3 and the auxiliary clamp 6. The adjustment assembly 7 is used to position the distance between the main clamp 3 and the auxiliary clamp 6.

[0049] Furthermore, the adjustment assembly 7 includes a connecting seat 701 and a compensation block 702. The connecting seat 701 is mounted on the opening and closing slider portion of the auxiliary clamp 6, and the compensation block 702 is mounted on the opening and closing slider portion of the main clamp 3. The connecting seat 701 and the compensation block 702 are provided with slots 703, the length direction of which is parallel to the distance adjustment direction of the main and auxiliary clamps 6. The slots 703 are used for fastening with fastening units 704 (such as screws and nuts) to lock the relative position of the connecting seat 701 and the compensation block 702, thereby positioning the distance between the main clamp 3 and the auxiliary clamp 6.

[0050] By setting a connecting seat 701 and a compensation block 702 in the adjustment assembly 7, and opening a slot 703 extending along the spacing adjustment direction on them, the relative position between the main clamp 3 and the auxiliary clamp 6 can be adjusted. The connecting seat 701 and the compensation block 702 are fixed by a fastening unit 704 passing through the slot 703, thereby locking the distance between the main clamp 3 and the auxiliary clamp 6 and achieving flexible adjustment of the clamping spacing. This structure makes the clamp combination more adaptable, able to accommodate the clamping requirements of workpieces of different sizes, thus improving the versatility and ease of use of the clamping structure.

[0051] The part clamping structure also includes an auxiliary slide rail 8, which is mounted on the support platform 4 and its length is parallel to the spacing adjustment direction of the main and auxiliary clamps 6. The auxiliary slide rail 8 connects the support platform 4 and the auxiliary clamp 6, effectively improving the smoothness of operation.

[0052] The part clamping structure also includes a drive assembly 9, which is connected to the main gear 101 and drives the main gear 101 to rotate. Specifically, the drive assembly 9 includes a drive source 901 and a mounting plate 902. The mounting plate 902 is mounted on top of the main gear 101, and the drive source 901 is mounted on the mounting plate 902. The output end of the drive source 901 passes through the mounting plate 902 and connects to the main gear 101 to drive the main gear 101. By setting up the drive assembly 9, the main gear 101 can be directly driven by the drive source 901, thereby realizing automated control of the clamping action and improving operating efficiency. By having the output end of the drive source 901 (motor) pass through the mounting plate 902 and connect to the main gear 101, the transmission path is direct and reliable, reducing power loss and improving the response speed and operational stability of the clamping structure.

[0053] In this embodiment, the process of driving the main clamp 3 and the auxiliary clamp 6 to clamp or release the workpiece is as follows: When the drive source 901 (such as a motor) is started, it drives the main gear 101 to rotate through the output end. The main gear 101 drives the multiple auxiliary gears 102 meshing with it to rotate synchronously, thereby driving each screw rod 2 to rotate synchronously.

[0054] The rotation of the screw rod 2 drives the nut slider 301, which is threadedly engaged with it, to move linearly along the axial direction. When the nut slider 301 in the main clamp 3 moves, it pushes the movable jaw 303 to rotate around the hinge point with the fixed jaw 302, thereby realizing the opening and closing action of the jaw.

[0055] At the same time, the opening and closing slider of the auxiliary clamp 6 is connected to the opening and closing slider (nut slider 301) of the main clamp 3. When the main clamp 3 moves, it moves synchronously, driving the auxiliary clamp 6 to open and close synchronously, so as to realize synchronous clamping of the workpiece at multiple points.

[0056] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some changes or modifications to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes, and modifications made to the above embodiments based on the present utility model without departing from the scope of the present utility model shall fall within the scope of the present utility model.

Claims

1. A part clamping structure, characterized in that, include: A gear pair includes a primary gear and at least two secondary gears meshing with the primary gear, the secondary gears being arranged circumferentially spaced along the primary gear; At least two helical rods, each of which is coaxially and fixedly connected to the corresponding auxiliary gear; At least two main clamps, each of which is threadedly connected to a corresponding helical rod, and the main clamps move linearly along the axial direction of the helical rod; When the main gear rotates, it drives the screw rods to rotate synchronously through the secondary gears, so that the main clamps on the screw rods can clamp or release the workpieces at the same time.

2. The part clamping structure according to claim 1, characterized in that, It also includes a support platform, the gear pair is mounted on the top of the support platform, the main clamp includes a nut slider that is threadedly engaged with the helical rod, a fixed clamp and a movable clamp, the fixed clamp is hinged to the bottom of the support platform, and the two ends of the movable clamp are respectively hinged to the fixed clamp and the nut slider; wherein, when the nut slider moves along the axial direction of the helical rod, it drives the movable clamp to rotate around the hinge point, realizing the opening and closing action with the fixed clamp.

3. The part clamping structure according to claim 2, characterized in that, It also includes a guide assembly disposed between each of the nut sliders, the guide assembly being used to guide the nut sliders to move along each of the helical rods.

4. The part clamping structure according to claim 3, characterized in that, The guide assembly includes a guide rod and a guide slider. The guide rod is arranged parallel to the helical rod, and the guide slider is sleeved on the guide rod and can slide along its axial direction. The guide slider is connected to each of the nut sliders.

5. A part clamping structure according to any one of claims 1-4, characterized in that, It also includes a secondary clamp, which is installed on the side of the main clamp. The opening and closing slider of the secondary clamp is connected to the opening and closing slider of the main clamp. When the opening and closing slider of the main clamp moves along the axial direction of the screw rod, it synchronously drives the opening and closing slider of the secondary clamp to move in the same direction, so that the secondary clamp and the main clamp can synchronously clamp the workpiece.

6. A part clamping structure according to claim 5, characterized in that, It also includes an adjustment component connected between the main clamp and the auxiliary clamp, the adjustment component being used to position the distance between the main clamp and the auxiliary clamp.

7. A part clamping structure according to claim 6, characterized in that, The adjustment assembly includes a connecting seat and a compensation block. The connecting seat is installed on the opening and closing slider of the auxiliary clamp, and the compensation block is installed on the opening and closing slider of the main clamp. The connecting seat and the compensation block have slots. The length direction of the slots is parallel to the distance adjustment direction between the main clamp and the auxiliary clamp. The slots are used to fasten and lock the relative position of the connecting seat and the compensation block by a fastening unit, thereby positioning the distance between the main clamp and the auxiliary clamp.

8. A part clamping structure according to claim 6 or 7, characterized in that, It also includes an auxiliary slide rail, the extension direction of which is parallel to the distance adjustment direction between the main clamp and the auxiliary clamp.

9. A part clamping structure according to any one of claims 1-4, 6, or 7, characterized in that, It also includes a drive assembly connected to the main gear, the drive assembly being used to drive the main gear.

10. A part clamping structure according to claim 9, characterized in that, The drive assembly includes a drive source and a mounting plate. The mounting plate is mounted on top of the main gear, and the drive source is mounted on the mounting plate. The output end of the drive source passes through the mounting plate and is connected to the main gear.

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