A fixture device for multi-station machining of a transfer case

Abstract

The utility model discloses a kind of multi-station processing split axle's clamp device, it is related to the technical field of split axle clamp, solve the problem that single-station clamp can only clamp one split axle, wherein, multiple product positioning blocks are arranged along the length direction of workbench;Multiple hydraulic cylinders are arranged at interval two along the arrangement direction of product positioning block;When hydraulic cylinder is in the state of contraction;The bottom surface of positioning pressing plate is pressed on the top of one split axle product located at its single side or the top of two split axle products at its left and right sides, in the utility model, multiple split axles can be simultaneously clamped by multi-station clamp, realize the continuous processing of multiple stations by once clamping, greatly reduce clamping frequency and machine tool idle time, improve production efficiency.

Description

Technical Field

[0001] This utility model relates to the technical field of transfer case clamps, and in particular to a clamping device for multi-station processing of transfer cases. Background Technology

[0002] With the development of the manufacturing industry, the demand for transfer cases is constantly increasing. Traditional single-station fixtures can only process one workpiece at a time, and the long clamping and unclamping time leads to low production efficiency. At the same time, the structure of the transfer case is complex, with multiple interconnected hole systems, planes and tooth profiles, and the positional accuracy requirements between the various processing parts are high. Utility Model Content

[0003] To address the issue that a single-station fixture can only hold one transfer case, the present invention aims to provide a fixture device for multi-station processing of transfer cases. Through innovative structural design and functional layout, it achieves efficient and high-precision processing of transfer cases, thereby meeting the quality and efficiency requirements of modern manufacturing for transfer case production.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0005] A fixture device for multi-station machining of a transfer case includes: a four-axis left-side indexing plate 1, a four-axis right-side indexing plate 10, a four-axis left-side L-plate 2, a four-axis right-side L-plate 9, a worktable 13, a product positioning block 7, a hydraulic cylinder pad block 5, a hydraulic cylinder 4, and a clamping block. The four-axis left-side indexing plate 1 and the four-axis right-side indexing plate 10 are symmetrically arranged on the left and right sides. The four-axis left-side L-plate 2 is mounted on the drive end of the four-axis left-side indexing plate 1, and the four-axis right-side L-plate 9 is mounted on the drive end of the four-axis right-side indexing plate 10. The two ends of the worktable 13 are respectively connected to the four-axis left-side L-plate. 2. Connects to the right side L plate 9 of the four-axis; the left side indexing plate 1 and the right side indexing plate 10 of the four-axis are used to synchronously drive the worktable 13 to achieve four-point rotation; at least two product positioning blocks 7 are installed on the upper surface of the worktable 13, and multiple product positioning blocks 7 are used to assemble the transfer case product 3; at least one hydraulic cylinder pad block 5 is installed on the upper surface of the worktable 13; the cylinder body end of each hydraulic cylinder 4 is connected to the upper surface of the hydraulic cylinder pad block 5; the cylinder rod end of each hydraulic cylinder 4 is connected to the bottom surface of a clamping block; the hydraulic cylinder 4 is used to drive the clamping block to rise and fall;

[0006] Multiple product positioning blocks 7 are arranged along the length of the worktable 13; multiple hydraulic cylinders 4 are arranged at intervals of two along the arrangement direction of the product positioning blocks 7;

[0007] When the hydraulic cylinder 4 is in the retracted state, the bottom surface of the clamping block presses against the top of one transfer case product 3 located on one side of it or the tops of the two transfer case products 3 on its left and right sides.

[0008] The aforementioned fixture device for multi-station machining transfer box further includes: cylindrical pins 12, and the two ends of the worktable 13 are respectively positioned and assembled with the left L plate 2 and the right L plate 9 of the four-axis through multiple cylindrical pins 12.

[0009] The aforementioned fixture device for the multi-station machining transfer box further includes: hexagonal bolts 11, with the two ends of the worktable 13 respectively locked to the left L-plate 2 and the right L-plate 9 of the four-axis via multiple hexagonal bolts 11.

[0010] The aforementioned multi-station machining transfer case fixture device further includes: diamond-shaped locating pins 6, wherein each transfer case product 3 and a product locating block 7 are positioned and assembled through multiple diamond-shaped locating pins 6.

[0011] The aforementioned fixture device for multi-station machining transfer cases further includes: circular positioning pins 8, wherein each transfer case product 3 and a product positioning block 7 are positioned and assembled by multiple circular positioning pins 8.

[0012] In the above-mentioned fixture device for the multi-station machining transfer box, the upper surface of the product positioning block 7 is a positioning plane with a surface roughness of 30μm.

[0013] The aforementioned fixture device for the multi-station machining transfer box includes a four-axis left indexing plate 1 comprising a left frame and a first drive device, wherein the first drive device is installed inside the left frame; the first drive device is used to drive the four-axis left L plate 2 to achieve four-index rotation.

[0014] The aforementioned fixture device for the multi-station machining transfer box includes a four-axis right-side indexing plate 10 comprising a right-side frame and a second drive device, wherein the second drive device is installed within the right-side frame; the second drive device is used to drive the four-axis right-side L-plate 9 to achieve four-point rotation.

[0015] The aforementioned fixture device for the multi-station machining transfer box includes a four-axis right-side indexing plate 10 further comprising: a third drive device and an end gear plate. The third drive device is installed inside the right-side frame. The end face of the four-axis right-side L-plate 9 facing the right-side frame has a toothed structure. The end gear plate is located between the right-side frame and the four-axis right-side L-plate 9 and is installed at the drive end of the third drive device. The end gear plate matches the toothed structure. The third drive device is used to drive the end gear plate to move along the output shaft axis of the second drive device, thereby realizing the engagement and disengagement of the end gear plate with the four-axis right-side L-plate 9.

[0016] Because this utility model employs the aforementioned technology, it has the following positive effects compared to existing technologies:

[0017] (1) In this utility model, the multi-station fixture can clamp multiple transfer boxes at the same time, and realize continuous processing of multiple stations through one clamping, which greatly reduces the number of clamping times and the idle time of the machine tool, and improves production efficiency.

[0018] (2) In this utility model, the multi-station fixture adopts a high-precision positioning and clamping device, which can ensure the position accuracy and stability of the transfer box during the processing, thereby effectively controlling the position accuracy between each processing surface and improving product quality. Attached Figure Description

[0019] Figure 1 This is a front view of a clamping device for a multi-station machining transfer box according to this utility model.

[0020] Figure 2 This is a top view of a fixture device for a multi-station machining transfer box according to this utility model.

[0021] In the attached diagram: 1. Left indexing plate of the four-axis; 2. Left L-plate of the four-axis; 3. Transfer case product; 4. Hydraulic cylinder; 5. Hydraulic cylinder pad; 6. Diamond locating pin; 7. Product locating block; 8. Circular locating pin; 9. Right L-plate of the four-axis; 10. Right indexing plate of the four-axis; 11. Hex bolt; 12. Cylindrical pin; 13. Worktable. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, but this is not intended to limit the present invention.

[0023] Please refer to Figure 1 and Figure 2 The diagram illustrates a fixture device for multi-station machining of a transfer case, comprising: a four-axis left-side indexing plate 1, a four-axis right-side indexing plate 10, a four-axis left-side L-plate 2, a four-axis right-side L-plate 9, a worktable 13, a product positioning block 7, a hydraulic cylinder pad block 5, a hydraulic cylinder 4, and a clamping block. The four-axis left-side indexing plate 1 and the four-axis right-side indexing plate 10 are symmetrically arranged on the left and right sides. The four-axis left-side L-plate 2 is mounted on the drive end of the four-axis left-side indexing plate 1, and the four-axis right-side L-plate 9 is mounted on the drive end of the four-axis right-side indexing plate 10. The two ends of the worktable 13 are respectively connected to the four-axis left-side L-plate 2. Side L-plate 2 and right side L-plate 9 of the four-axis are connected; left side indexing plate 1 and right side indexing plate 10 of the four-axis are used to synchronously drive the worktable 13 to achieve four-point rotation; at least two product positioning blocks 7 are installed on the upper surface of the worktable 13, and multiple product positioning blocks 7 are used to assemble transfer box products 3; at least one hydraulic cylinder pad block 5 is installed on the upper surface of the worktable 13; the cylinder body end of each hydraulic cylinder 4 is connected to the upper surface of the hydraulic cylinder pad block 5; the cylinder rod end of each hydraulic cylinder 4 is connected to the bottom surface of a clamping block; the hydraulic cylinder 4 is used to drive the clamping block to rise and fall;

[0024] Multiple product positioning blocks 7 are arranged along the length of the worktable 13; multiple hydraulic cylinders 4 are arranged at intervals of two along the arrangement direction of the product positioning blocks 7;

[0025] When the hydraulic cylinder 4 is in the retracted state, the bottom surface of the clamping block presses against the top of one transfer case product 3 located on one side of it or the tops of the two transfer case products 3 on its left and right sides.

[0026] Furthermore, in a preferred embodiment, it also includes: cylindrical pins 12, with the two ends of the worktable 13 being positioned and assembled with the left L-plate 2 and the right L-plate 9 of the four-axis respectively through multiple cylindrical pins 12.

[0027] Furthermore, in a preferred embodiment, it also includes: hexagonal bolts 11, with the two ends of the worktable 13 respectively locked to the left L-plate 2 and the right L-plate 9 of the four-axis via multiple hexagonal bolts 11.

[0028] Furthermore, in a preferred embodiment, it also includes: diamond-shaped locating pins 6, with each transfer case product 3 and product positioning block 7 being positioned and assembled through multiple diamond-shaped locating pins 6.

[0029] Furthermore, in a preferred embodiment, it also includes: circular positioning pins 8, each transfer case product 3 and a product positioning block 7 are positioned and assembled by multiple circular positioning pins 8.

[0030] Furthermore, in a preferred embodiment, the upper surface of the product positioning block 7 is a positioning plane with a surface roughness of 30 μm.

[0031] Furthermore, in a preferred embodiment, the four-axis left indexing plate 1 includes: a left frame and a first drive device, the first drive device being installed in the left frame; the first drive device is used to drive the four-axis left L plate 2 to achieve four-point rotation.

[0032] Furthermore, in a preferred embodiment, the four-axis right-side indexing plate 10 includes: a right-side frame and a second drive device, the second drive device being installed inside the right-side frame; the second drive device is used to drive the four-axis right-side L-plate 9 to achieve four-point rotation.

[0033] Furthermore, in a preferred embodiment, the four-axis right-side indexing plate 10 further includes: a third drive device and an end gear plate. The third drive device is installed in the right-side frame. The end face of the four-axis right-side L-plate 9 facing the right-side frame is provided with a toothed structure. The end gear plate is located between the right-side frame and the four-axis right-side L-plate 9 and is installed at the drive end of the third drive device. The end gear plate matches the toothed structure. The third drive device is used to drive the end gear plate to move along the output shaft axis of the second drive device, thereby realizing the engagement and disengagement of the end gear plate with the four-axis right-side L-plate 9.

[0034] The above are merely preferred embodiments of the present invention and are not intended to limit the implementation methods and protection scope of the present invention.

[0035] Based on the above, this utility model also has the following embodiments:

[0036] In a further embodiment of this utility model, the multi-station fixture can clamp multiple transfer boxes simultaneously, enabling continuous processing of multiple stations through a single clamping, greatly reducing the number of clamping operations and machine tool idle time, and improving production efficiency.

[0037] In a further embodiment of this utility model, the multi-station fixture adopts a high-precision positioning and clamping device, which can ensure the positional accuracy and stability of the transfer box during the processing, thereby effectively controlling the positional accuracy between each processing surface and improving product quality.

[0038] In a further embodiment of this utility model, the positioning and clamping device includes four-axis left indexing plate 1 and four-axis right indexing plate 10 for four-axis rotational positioning of the worktable 13, locking positioning of the end gear plate, assembly positioning between the transfer case and the product positioning block 7 through the rhomboid positioning pin 6 and the circular positioning pin 8, and clamping positioning of the transfer case by the retraction of the hydraulic cylinder 4.

[0039] In a further embodiment of this utility model, the left indexing plate 1 and the right indexing plate 10 of the four-axis enable the worktable 13 and the multiple transfer cases mounted on it to rotate in four-quarters; the same side end face of the multiple transfer cases can be processed separately or simultaneously. The indexing plate structure ensures that the processing surface and processing angle of the multiple transfer cases in different batches are consistent.

[0040] In a further embodiment of this utility model, both the first driving device and the second driving device can be electric driving mechanisms, such as motors, or other driving mechanisms with high precision and easy control, such as hydraulic driving mechanisms. Structurally, they can be combined with gear transmission mechanisms or worm gear transmission mechanisms to achieve transmission.

[0041] In a further embodiment of this utility model, the third driving device may be an electric push rod or a hydraulic push rod to realize the displacement of the end gear plate along the length direction of the worktable 13.

[0042] In a further embodiment of this utility model, by setting an end gear plate, the third driving device drives the end gear plate to move along the length direction of the worktable 13 until the end gear plate meshes with the right side L plate 9 of the four-axis. During use, when the first driving device and the second driving device synchronously drive the worktable 13 to rotate, after the end faces of the multiple transfer cases to be processed rotate to the processing position, the third driving device drives the end gear plate to move and mesh with the right side L plate 9 of the four-axis. Under the action of the end gear plate, the worktable 13 is limited and cannot rotate. At this time, the end faces of the multiple transfer cases can be processed without worrying about the worktable 13 rotating during the processing, which improves the processing accuracy of the multiple transfer cases and reduces the defect rate.

[0043] In a further embodiment of this invention, the displacement of the end gear disc can be achieved by a third driving device via a lead screw.

[0044] In a further embodiment of this utility model, multiple non-driving components of the clamping device are made of high-strength cast steel alloy and undergo aging treatment to eliminate internal stress, ensuring that they will not deform during long-term use. The worktable 13 is designed as a flat plate structure, and the bottom of the four-axis left indexing plate 1 and the four-axis right indexing plate 10 are equipped with clamping positioning pins, which can be quickly and efficiently mounted on the machine tool's worktable to ensure the positioning accuracy of the transfer case clamping device.

[0045] In a further embodiment of this utility model, considering the complex external structure of the transfer case, the positioning device adopts a "one-face, two-pin" positioning method. A precision-machined positioning plane, namely the upper surface of the product positioning block 7, is set on the fixture worktable. The surface roughness reaches 30μm, which fits against the reference surface of the transfer case, providing stable support. At the same time, two high-precision positioning pins, one circular positioning pin 8 and the other diamond-shaped positioning pin 6, are inserted into the pre-designed positioning holes on the transfer case. The fit tolerance between the positioning pins and the positioning holes is controlled within ±0.02mm, ensuring that the positioning accuracy of the transfer case on the fixture reaches ±0.02mm, meeting the high-precision machining requirements.

[0046] In a further embodiment of this utility model, the clamping device adopts a mechanical clamping method to provide a stable and adjustable clamping force. By designing the arrangement of the hydraulic cylinders 4, clamping points are evenly distributed at each station to ensure that the clamping force is always in the optimal state.

[0047] In a further embodiment of this utility model, the workflow and principle are as follows:

[0048] First, the transfer case is placed on the product positioning block 7 of the fixture, ensuring that the reference surface of the transfer case aligns with the positioning plane, thus completing the initial positioning. Next, the hydraulic system is activated, and the hydraulic cylinder 4 pushes the clamping block to clamp the transfer case, ensuring it is firmly fixed during processing. After processing at one station is completed, the control system issues a command to rotate the worktable 13, moving the next workpiece to the processing position. The end gear plate disengages during rotation, and re-engages upon reaching the designated station, achieving precise indexing and positioning.

[0049] The above are merely preferred embodiments of the present utility model and are not intended to limit the implementation methods and protection scope of the present utility model. Those skilled in the art should realize that any equivalent substitutions and obvious changes made based on the description and illustrations of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A fixture device for multi-station machining of a transfer case, characterized in that, include: The four-axis left indexing plate (1), four-axis right indexing plate (10), four-axis left L-plate (2), four-axis right L-plate (9), worktable (13), product positioning block (7), hydraulic cylinder pad (5), hydraulic cylinder (4), and clamping block are arranged symmetrically on the left and right sides. The drive end of the four-axis left indexing plate (1) is equipped with the four-axis left L-plate (2), and the drive end of the four-axis right indexing plate (10) is equipped with the four-axis right L-plate (9). The two ends of the worktable (13) are respectively connected to the four-axis left L-plate (2) and the four-axis right L-plate (9). 9) Connection; The left indexing plate (1) and the right indexing plate (10) of the four-axis are used to synchronously drive the worktable (13) to achieve four-quarter rotation; At least two product positioning blocks (7) are installed on the upper surface of the worktable (13), and multiple product positioning blocks (7) are used to assemble transfer box products (3); At least one hydraulic cylinder pad block (5) is installed on the upper surface of the worktable (13); The cylinder body end of each hydraulic cylinder (4) is connected to the upper surface of the hydraulic cylinder pad block (5); The cylinder rod end of each hydraulic cylinder (4) is connected to the bottom surface of a clamping block; The hydraulic cylinder (4) is used to drive the clamping block to lift and lower; Multiple product positioning blocks (7) are arranged along the length of the worktable (13); multiple hydraulic cylinders (4) are arranged at intervals of two along the arrangement direction of the product positioning blocks (7); When the hydraulic cylinder (4) is in the retracted state, the bottom surface of the clamping block presses against the top of one transfer case product (3) located on one side of it or the top of the two transfer case products (3) on its left and right sides.

2. The fixture device for multi-station machining transfer box according to claim 1, characterized in that, Also includes: The two ends of the worktable (13) are positioned and assembled with the left L plate (2) of the four-axis and the right L plate (9) of the four-axis respectively through multiple cylindrical pins (12).

3. The fixture device for multi-station machining transfer box according to claim 2, characterized in that, Also includes: The two ends of the worktable (13) are locked to the left L plate (2) and the right L plate (9) of the four-axis respectively by multiple hexagonal bolts (11).

4. The fixture device for multi-station machining transfer box according to claim 1, characterized in that, Also includes: Each transfer case product (3) and a product positioning block (7) are positioned and assembled by multiple diamond-shaped positioning pins (6).

5. The fixture device for multi-station machining transfer box according to claim 1, characterized in that, Also includes: Circular locating pins (8) are used to position and assemble each transfer case product (3) and a product locating block (7).

6. The fixture device for multi-station machining transfer box according to claim 1, characterized in that, The upper surface of the product positioning block (7) is a positioning plane with a surface roughness of 30μm.

7. The fixture device for multi-station machining transfer box according to claim 1, characterized in that, The four-axis left indexing plate (1) includes: a left frame and a first drive device, the first drive device being installed in the left frame; the first drive device is used to drive the four-axis left L plate (2) to achieve four-point rotation.

8. The fixture device for multi-station machining transfer box according to claim 1, characterized in that, The four-axis right-side indexing plate (10) includes: a right-side frame and a second drive device, the second drive device being installed inside the right-side frame; the second drive device is used to drive the four-axis right-side L-plate (9) to achieve four-point rotation.

9. The fixture device for multi-station machining transfer box according to claim 8, characterized in that, The four-axis right indexing plate (10) also includes: a third drive device and an end gear plate. The third drive device is installed in the right frame. The end face of the four-axis right L plate (9) facing the right frame is provided with a toothed structure. The end gear plate is located between the right frame and the four-axis right L plate (9) and is installed at the drive end of the third drive device. The end gear plate matches the toothed structure. The third drive device is used to drive the end gear plate to move along the output shaft axis of the second drive device, thereby realizing the meshing and separation of the end gear plate and the four-axis right L plate (9).

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