A double-station machining fixture

Abstract

The application relates to the technical field of tool fixtures, in particular to a double-station machining fixture, which comprises a mounting bottom plate, a first clamping mechanism and a second clamping mechanism, the first clamping mechanism and the second clamping mechanism are arranged on the mounting bottom plate in a spaced mode, a workpiece comprises a first side surface and a second side surface arranged oppositely, the first clamping mechanism and the second clamping mechanism clamp the workpiece in sequence, the first clamping mechanism clamps the workpiece to process the first side surface of the workpiece, and the second clamping mechanism clamps the workpiece to process the second side surface of the workpiece. In the application, the first clamping mechanism and the second clamping mechanism are arranged on the mounting bottom plate, so that the same machining equipment can process the workpiece in steps, the number of machining equipment occupied by the workpiece is reduced, the mounting and dismounting times of the mounting bottom plate are reduced, and therefore the machining efficiency of the workpiece is improved.

Description

Technical Field

[0001] This application relates to the field of tooling fixtures, and in particular to a dual-station machining fixture. Background Technology

[0002] Machining fixtures are indispensable process equipment in the mechanical manufacturing process. Machining fixtures generally include a base plate, positioning components and clamping components. The positioning components and clamping components are set on the base plate and fix the workpiece on the base plate, so that the workpiece is in an accurate machining position on the machine tool or equipment, so as to ensure that the size, shape and positional accuracy of the workpiece meets the design requirements.

[0003] In traditional machining fixtures, workpieces are placed on corresponding fixtures for single-sided or multi-sided machining. However, when a workpiece requires step-by-step machining, such as machining a through hole on one side and a groove on the other, it is usually necessary to place the part on different machining fixtures for machining. This design typically requires multiple machining machines (e.g., two machines) to process a single workpiece, resulting in a large number of machines being used for each workpiece and affecting machining efficiency. Utility Model Content

[0004] To improve workpiece machining efficiency, this application provides a dual-station machining fixture.

[0005] This application provides a dual-station machining fixture, which adopts the following technical solution: A dual-station machining fixture includes a mounting base plate, a first clamping mechanism, and a second clamping mechanism. The first clamping mechanism and the second clamping mechanism are spaced apart on the mounting base plate. The workpiece includes a first side and a second side that are disposed opposite to each other. The first clamping mechanism and the second clamping mechanism clamp the workpiece sequentially. The first clamping mechanism clamps the workpiece to process the first side of the workpiece, and the second clamping mechanism clamps the workpiece to process the second side of the workpiece.

[0006] By adopting the above technical solution, the workpiece is fixed to the mounting base plate using the first clamping mechanism, allowing the processing equipment to process the first side of the workpiece; after the processing equipment completes the processing of the first side of the workpiece, the workpiece is inverted and installed in the second clamping mechanism, allowing the processing equipment to process the second side of the workpiece. In other words, by setting the first and second clamping mechanisms on the mounting base plate, the same processing equipment can process the workpiece in steps, reducing the number of processing devices occupied by the workpiece and reducing the number of times the mounting base plate is installed and removed, thereby improving the processing efficiency of the workpiece.

[0007] Optionally, the first clamping mechanism includes a first pad, a first positioning component, a second positioning component, and a third positioning element; the first pad is disposed on the mounting base plate and abuts against the second side of the workpiece to restrict the workpiece's degree of freedom in the Z-axis; the first positioning component and the second positioning component are disposed on both sides of the first pad and are used to clamp the workpiece to restrict the workpiece's degree of freedom in the Y-axis; the third positioning element abuts against the workpiece to restrict the workpiece's degree of freedom in the X-axis.

[0008] By adopting the above technical solution, the workpiece is placed on the first pad and abuts against the third positioning component. Then, the workpiece is clamped by the first positioning component and the second positioning component. That is, through the coordinated cooperation of each part of the first clamping mechanism, the workpiece is quickly fixed on the mounting base plate, so as to facilitate the processing of the workpiece and improve the processing efficiency of the workpiece.

[0009] Optionally, the first positioning component includes a first positioning block, a horizontal pushing component, and a first abutting block; the first positioning block is disposed on the mounting base and has a stepped groove for accommodating the horizontal pushing component; the horizontal pushing component includes a first guide block, a second guide block, a third guide block, and a guide screw; the third guide block has a guide hole for the guide screw to pass through vertically, the guide screw is threadedly connected to the first positioning block, the second guide block is fixedly connected to the side wall of the stepped groove, and the second guide block is tenon-jointed with the third guide block; the first guide block is disposed on the side of the third guide block away from the second guide block, the first guide block is tenon-jointed with the third positioning block, the third guide block has a guide surface that abuts against the first guide block, and the first abutting block is disposed on the first guide block; when the guide screw forces the third guide block to move downward, the third guide block forces the second guide block to move horizontally toward the workpiece, so that the first abutting block clamps the workpiece.

[0010] By adopting the above technical solution, the guide screw is rotated, causing the guide screw to move vertically downward; thereby causing the third guide block to move toward the workpiece, thus enabling the first clamping mechanism to clamp the workpiece.

[0011] Optionally, the first abutting protrusion is provided on the side away from the third guide block, and the first abutting protrusion is provided with a plurality of first abutting teeth, which are used to abut against the workpiece.

[0012] By adopting the above technical solution, the first abutting tooth on the first abutting protrusion abuts against the workpiece, thereby improving the stability of the first clamping mechanism in clamping the workpiece.

[0013] Optionally, the second positioning component includes a second positioning block and a second abutment block. The second positioning block is fixed on the mounting base plate, and the second abutment block is detachably mounted on the side of the second positioning block. The second abutment block is used to abut and fix with the workpiece.

[0014] By adopting the above technical solution, the workpiece can be clamped by the cooperation of the first abutment block and the second abutment block.

[0015] Optionally, the second abutting protrusion is provided on the side away from the second positioning block, and the second abutting protrusion is provided with a plurality of second abutting teeth, which are used to abut against the workpiece.

[0016] By adopting the above technical solution, the second abutting tooth on the second abutting protrusion abuts against the workpiece, thereby improving the stability of the first clamping mechanism in clamping the workpiece.

[0017] Optionally, the second clamping mechanism includes a second pad, positioning posts, and a vertical limiting component; the second pad abuts against the first side of the workpiece; two positioning posts are provided, located on both sides of the second pad, and the first side of the workpiece has positioning holes for the positioning posts to pass through, the positioning posts being used to restrict the workpiece's degrees of freedom on the X and Y axes; the vertical limiting component is located on the mounting base plate, and the vertical limiting component clamps the workpiece vertically downward to restrict the workpiece's degrees of freedom on the Z axis.

[0018] By adopting the above technical solution, the second clamping mechanism can fix the workpiece by coordinating the various parts of the second clamping mechanism.

[0019] Optionally, the vertical limiting assembly includes a pressure block, a limiting bolt, a spring, a limiting stud, and a limiting nut; the pressure block has an oblong hole for the limiting bolt to pass through, the mounting base has a threaded hole for the limiting bolt to pass through, the spring is sleeved on the outer circumference of the limiting bolt, and the limiting bolt is threadedly connected to the mounting base plate to force the pressure block to press against the second side of the workpiece; the mounting base plate has a through hole for the limiting stud, the limiting stud has a threaded section in the middle that is threadedly connected to the limiting nut, and the limiting nut is used to adjust the height of the limiting stud so that the limiting stud abuts against the bottom of the pressure block.

[0020] By adopting the above technical solution, the pressure block moves vertically downward and abuts against the workpiece by rotating the limiting bolt, thereby using the second pad block and the pressure block to clamp the workpiece and restrict the workpiece's degree of freedom; while rotating the limiting nut to adjust the height of the limiting stud, thereby achieving the abutment between the limiting stud and the pressure block, that is, by using the supporting effect of the limiting stud on the pressure block, the stability of the pressure block clamping the workpiece can be improved.

[0021] In summary, this application includes at least one of the following beneficial technical effects: 1. By setting a first clamping mechanism and a second clamping mechanism on the mounting base plate, the same processing equipment can process the workpiece step by step, reducing the number of processing equipment occupied by the workpiece, and reducing the number of times the mounting base plate is installed and disassembled, thereby improving the processing efficiency of the workpiece. 2. By rotating the guide screw, the guide screw drives the third guide block to move vertically downward; thereby causing the third guide block to move toward the workpiece, thus achieving the clamping purpose of the first clamping mechanism on the workpiece; 3. By rotating the limiting bolt, the pressure block moves vertically downward and comes into contact with the workpiece, thereby using the second pad and the pressure block to clamp the workpiece and restrict its degree of freedom; while rotating the limiting nut to adjust the height of the limiting stud, thereby achieving contact between the limiting stud and the pressure block, that is, by using the supporting effect of the limiting stud on the pressure block, the stability of the pressure block clamping the workpiece can be improved. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the first state of the dual-station machining fixture in this embodiment.

[0023] Figure 2 This is a schematic diagram of the second state of the dual-station machining fixture in this embodiment.

[0024] Figure 3 yes Figure 1 Enlarged view of point A in the middle.

[0025] Figure 4 yes Figure 3 Enlarged view of point B in the middle.

[0026] Figure 5 yes Figure 2 Enlarged view of point C in the middle.

[0027] Figure 6 yes Figure 1 Enlarged view of point D in the middle.

[0028] Figure 7 yes Figure 2 Enlarged view of point E in the middle.

[0029] Explanation of reference numerals in the attached drawings: 1. Mounting base plate; 2. First clamping mechanism; 21. First pad; 22. First positioning component; 221. First positioning block; 2211. Step groove; 222. Horizontal pushing component; 2221. First guide block; 2222. Second guide block; 2223. Third guide block; 22231. Guide surface; 2224. Guide screw; 223. First abutting block; 224. First abutting protrusion; 2241. First abutting tooth; 23. Second positioning component; 231. Second positioning block; 232. Second abutting block; 233. Second abutting protrusion; 2331. Second abutting tooth; 24. Third positioning component; 3. Second clamping mechanism; 31. Second pad; 32. Positioning post; 33. Vertical limiting component; 331. Pressure block; 3311. Waist-shaped hole; 332. Limiting bolt; 333. Spring; 334. Limiting stud; 335. Limiting nut; 4. Workpiece; 41. Positioning hole. Detailed Implementation

[0030] The following is in conjunction with the appendix Figure 1 Section 7 provides further details regarding this application.

[0031] This application discloses a dual-station machining fixture. (Refer to...) Figure 1 The dual-station machining fixture includes a mounting base plate 1, a first clamping mechanism 2, and a second clamping mechanism 3. The first clamping mechanism 2 and the second clamping mechanism 3 are spaced apart on the mounting base plate 1, and the first clamping mechanism 2 and the second clamping mechanism 3 clamp the workpiece 4 sequentially. In this embodiment, the mounting base plate 1 has several through holes in the middle and on both sides for bolts and screws to pass through, so as to fix the first clamping mechanism 2 and the second clamping mechanism 3 on the mounting base plate 1, and fix the mounting base plate 1 to the machining equipment (e.g., CNC machining center) of the workpiece 4.

[0032] In this embodiment, the workpiece 4 is a quadrangular prism shape and is hollow inside. The workpiece 4 includes a first side and a second side arranged opposite each other. Several through holes need to be machined on the first side of the workpiece 4, and grooves need to be machined on the second side. In this embodiment, positioning holes 41 are provided through the four corners of the workpiece 4. A first clamping mechanism 2 clamps the workpiece 4 to machine the first side of the workpiece 4, and a second clamping mechanism 3 clamps the workpiece 4 to machine the second side of the workpiece 4.

[0033] The first clamping mechanism 2 includes a first pad 21, a first positioning component 22, a second positioning component 23, and a third positioning element 24.

[0034] A first pad 21 is disposed on the mounting base plate 1, and abuts against the second side of the workpiece 4 to restrict the workpiece 4's degree of freedom in the Z-axis. In this embodiment, the pad is detachably connected to the mounting base plate 1 by bolts. A first positioning component 22 and a second positioning component 23 are disposed on both sides of the pad, and are used to clamp the workpiece 4 to restrict the workpiece 4's degree of freedom in the Y-axis. In this embodiment, a third positioning component 24 is disposed on the second positioning component 23, and is perpendicular to the second positioning component 23. The third positioning component 24 abuts against the workpiece 4 to restrict the workpiece 4's degree of freedom in the X-axis.

[0035] In this embodiment, the workpiece 4 is placed on the first pad 21 and abuts against the third positioning member 24. Then, the workpiece 4 is clamped by the first positioning component 22 and the second positioning component 23. That is, through the coordinated cooperation of each part of the first clamping mechanism 2, the workpiece 4 is quickly fixed on the mounting base plate 1 to facilitate the processing of the workpiece 4 and improve the processing efficiency of the workpiece 4.

[0036] In this embodiment, the first positioning component 22 includes a first positioning block 221, a horizontal pushing component 222, and a first abutting block 223. The first positioning block 221 is detachably mounted on the mounting base by bolts, and the first positioning block 221 is provided with a stepped groove 2211 for accommodating the horizontal pushing component 222.

[0037] The horizontal pushing assembly 222 includes a first guide block 2221, a second guide block 2222, a third guide block 2223, and a guide screw 2224. The third guide block 2223 has a guide hole for the guide screw 2224 to pass vertically through. The guide screw 2224 is threadedly connected to the first positioning block 221, and the guide screw forces the third guide block 2223 to move vertically downwards. The second guide block 2222 is bolted to the sidewall of the stepped groove 2211, and the second guide block 2222 is mortised and tenoned to the third guide block 2223. The first guide block 2221 is located on the side of the third guide block 2223 away from the second guide block 2222, and the first guide block 2221 is mortised and tenoned to the third positioning block.

[0038] In this embodiment, the third guide block 2223 is an isosceles trapezoid, and the first guide block 2221 and the second guide block 2222 are right-angled trapezoids. The third guide block 2223 is provided with a guide surface 22231 that abuts against the first guide block 2221 and the second guide block 2222. Thus, when the third guide block 2223 moves vertically downward, it forces the first guide block 2221 to move away from the second guide block 2222, that is, the third guide block 2223 forces the first guide block 2221 to move closer to the workpiece 4, so that the third guide block 2223 clamps the workpiece 4.

[0039] The first abutment block 223 is disposed on the first guide block 2221. When the guide screw 2224 forces the third guide block 2223 to move downward, the third guide block 2223 forces the second guide block 2222 to move horizontally toward the workpiece 4, so that the first abutment block 223 clamps the workpiece 4. That is, by rotating the guide screw 2224, the guide screw 2224 drives the third guide block 2223 to move vertically downward; thereby causing the third guide block 2223 to move toward the workpiece 4, thus achieving the clamping purpose of the first clamping mechanism 2 on the workpiece 4. In this embodiment, a first abutting protrusion 224 is provided on the side of the first abutting protrusion away from the third guide block 2223. The first abutting protrusion 224 is provided with a plurality of first abutting teeth 2241, which are used to abut against the workpiece 4 to improve the stability of the first clamping mechanism 2 in clamping the workpiece 4.

[0040] The second positioning component 23 includes a second positioning block 231 and a second abutting block 232. The second positioning block 231 is fixed on the mounting base plate 1, and the second abutting block 232 is detachably mounted on the side of the second positioning block 231. The second abutting block 232 is used to abut and fix with the workpiece 4. A second abutting protrusion 233 is provided on the side of the second abutting protrusion away from the second positioning block 231. The second abutting protrusion 233 is provided with a plurality of second abutting teeth 2331, which are used to abut with the workpiece 4 to improve the stability of the first clamping mechanism 2 in clamping the workpiece 4.

[0041] When the first clamping mechanism 2 clamps the workpiece 4, the processing equipment of the workpiece 4 processes the first side surface of the workpiece 4 to create through holes. In this embodiment, the processing equipment processes three larger through holes in the middle of the first side surface of the workpiece 4; and processes positioning holes 41 at the four corners of the second side surface.

[0042] Subsequently, the first clamping mechanism 2 engages with the workpiece 4 and clamps and limits it, then flips the workpiece 4 onto the second clamping mechanism 3. The second clamping mechanism 3 clamps the workpiece 4 so that the second side of the workpiece 4 faces the first side, thereby machining various grooves and through holes on the second side of the workpiece 4.

[0043] The second clamping mechanism 3 includes a second pad 31, positioning posts 32, and a vertical limiting assembly 33. The second pad 31 is detachably connected to the mounting base plate 1 by bolts, and abuts against the first side of the workpiece 4. Two positioning posts 32 are provided, located on both sides of the second pad 31. The first side of the workpiece 4 has positioning holes 41 for the positioning posts 32 to pass through, and the positioning posts 32 are used to restrict the degree of freedom of the workpiece 4 in the X and Y axes. The vertical limiting assembly 33 is provided on the mounting base plate 1, and the vertical limiting assembly 33 clamps the workpiece 4 vertically downward to restrict the degree of freedom of the workpiece 4 in the Z axis.

[0044] In this embodiment, the vertical limiting component 33 includes a pressure block 331, a limiting bolt 332, a spring 333, a limiting stud 334, and a limiting nut 335. The pressure block 331 has an oblong hole 3311 for the limiting bolt 332 to pass through, and the mounting base has a threaded hole for the limiting bolt 332 to pass through. The spring 333 is sleeved on the outer circumference of the limiting bolt 332, and the limiting bolt 332 is threadedly connected to the mounting base plate 1 to force the pressure block 331 to press against the second side of the workpiece 4; thereby achieving the purpose of the second clamping mechanism 3 clamping the workpiece 4 and restricting the workpiece 4's degree of freedom on the Z-axis.

[0045] The mounting base plate 1 has a through hole for a limiting stud 334. The limiting stud 334 has a threaded section in the middle that is threaded to a limiting nut 335. The limiting nut 335 is used to adjust the height of the limiting stud 334 so that the limiting stud 334 abuts against the bottom of the pressure block 331. That is, the supporting effect of the limiting stud 334 on the pressure block 331 is used to improve the stability of the pressure block 331 in clamping the workpiece 4.

[0046] The implementation principle of a dual-station machining fixture in this application embodiment is as follows: In this embodiment, the workpiece 4 is fixed to the mounting base plate 1 using the first clamping mechanism 2, allowing the processing equipment to process the first side of the workpiece 4; after the processing equipment completes the processing of the first side of the workpiece 4, the workpiece 4 is inverted and installed in the second clamping mechanism 3, allowing the processing equipment to process the second side of the workpiece 4. That is, by providing the first clamping mechanism 2 and the second clamping mechanism 3 on the mounting base plate 1, the same processing equipment can process the workpiece 4 in steps, reducing the number of processing equipment required for the workpiece 4, and also reducing the number of times the mounting base plate 1 is installed and removed, thereby improving the processing efficiency of the workpiece 4.

[0047] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A dual-station machining fixture, characterized in that: The device includes a mounting base plate (1), a first clamping mechanism (2) and a second clamping mechanism (3). The first clamping mechanism (2) and the second clamping mechanism (3) are spaced apart on the mounting base plate (1). The workpiece (4) includes a first side and a second side that are arranged opposite to each other. The first clamping mechanism (2) and the second clamping mechanism (3) clamp the workpiece (4) in sequence. The first clamping mechanism (2) clamps the workpiece (4) to process the first side of the workpiece (4), and the second clamping mechanism (3) clamps the workpiece (4) to process the second side of the workpiece (4).

2. The dual-station machining fixture according to claim 1, characterized in that: The first clamping mechanism (2) includes a first pad (21), a first positioning component (22), a second positioning component (23), and a third positioning component (24). The first pad (21) is disposed on the mounting base plate (1) and abuts against the second side of the workpiece (4) to restrict the degree of freedom of the workpiece (4) on the Z-axis. The first positioning component (22) and the second positioning component (23) are disposed on both sides of the first pad (21) and are used to clamp the workpiece (4) to restrict the degree of freedom of the workpiece (4) on the Y-axis. The third positioning component (24) abuts against the workpiece (4) to restrict the degree of freedom of the workpiece (4) on the X-axis.

3. The dual-station machining fixture according to claim 2, characterized in that: The first positioning component (22) includes a first positioning block (221), a horizontal pushing component (222), and a first abutting block (223); the first positioning block (221) is disposed on the mounting base plate (1), and the first positioning block (221) has a stepped groove (2211) for accommodating the horizontal pushing component (222); the horizontal pushing component (222) includes a first guide block (2221), a second guide block (2222), a third guide block (2223), and a guide screw (2224); the third guide block (2223) has a guide hole for the guide screw (2224) to pass through vertically; the guide screw (2224) is threadedly connected to the first positioning block (221); the second guide block (2222) is fixedly connected to the side wall of the stepped groove (2211). The second guide block (2222) is mortised and tenoned with the third guide block (2223); the first guide block (2221) is disposed on the side of the third guide block (2223) away from the second guide block (2222), the first guide block (2221) is mortised and tenoned with the third guide block (2223), the third guide block (2223) is provided with a guide surface (22231) that abuts against the first guide block (2221), the first abutting block (223) is disposed on the first guide block (2221), when the guide screw (2224) forces the third guide block (2223) to move downward, the third guide block (2223) forces the second guide block (2222) to move horizontally toward the workpiece (4), so that the first abutting block (223) clamps the workpiece (4).

4. The dual-station machining fixture according to claim 3, characterized in that: The first abutting block (223) has a first abutting protrusion (224) on the side away from the third guide block (2223). The first abutting protrusion (224) has a plurality of first abutting teeth (2241) and the first abutting teeth (2241) are used to abut against the workpiece (4).

5. The dual-station machining fixture according to claim 2, characterized in that: The second positioning component (23) includes a second positioning block (231) and a second abutting block (232). The second positioning block (231) is fixed on the mounting base plate (1), and the second abutting block (232) is detachably installed on the side of the second positioning block (231). The second abutting block (232) is used to abut and fix with the workpiece (4).

6. The dual-station machining fixture according to claim 5, characterized in that: The second abutting block (232) has a second abutting protrusion (233) on the side away from the second positioning block (231). The second abutting protrusion (233) has a plurality of second abutting teeth (2331) and the second abutting teeth (2331) are used to abut against the workpiece (4).

7. The dual-station machining fixture according to claim 1, characterized in that: The second clamping mechanism (3) includes a second pad (31), a positioning post (32), and a vertical limiting component (33); the second pad (31) abuts against the first side of the workpiece (4); there are two positioning posts (32), which are located on both sides of the second pad (31), and the first side of the workpiece (4) is provided with a positioning hole (41) for the positioning post (32) to pass through. The positioning post (32) is used to limit the degree of freedom of the workpiece (4) on the X-axis and Y-axis; the vertical limiting component (33) is located on the mounting base plate (1), and the vertical limiting component (33) clamps the workpiece (4) vertically downward to limit the degree of freedom of the workpiece (4) on the Z-axis.

8. The dual-station machining fixture according to claim 7, characterized in that: The vertical limiting assembly (33) includes a pressure block (331), a limiting bolt (332), a spring (333), a limiting stud (334), and a limiting nut (335); the pressure block (331) has a slotted hole (3311) for the limiting bolt (332) to pass through, the mounting base plate (1) has a threaded hole for the limiting bolt (332) to pass through, the spring (333) is sleeved on the outer periphery of the limiting bolt (332), and the limiting bolt (332) The mounting base (1) is threaded to the mounting base (1) to force the pressure block (331) to press against the second side of the workpiece (4); the mounting base (1) has a through hole for a limiting stud (334), and the limiting stud (334) has a threaded section in the middle that is threaded to the limiting nut (335). The limiting nut (335) is used to adjust the height of the limiting stud (334) so ​​that the limiting stud (334) abuts against the bottom of the pressure block (331).

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