A fine positioning jig

Abstract

The utility model provides a kind of fine adjustment positioning fixture, including mounting seat, still include: fixture structure, the fixture structure is arranged on mounting seat;Fine adjustment structure, the fine adjustment structure is arranged in fixture structure. By motor one rotation drives clamping pad one tightly against the lateral wall of workpiece, workpiece is fixed, when workpiece surface is uneven, motor two rotation drives clamping pad two and rests on the lateral wall of workpiece concave, increase the clamping area with irregular workpiece, it is convenient to better to the irregular workpiece is stably clamped, by motor three rotation drives clamping frame rotation, so that clamping frame is tightly clamped on the lateral wall of sliding sleeve, frosted lateral wall makes the frictional resistance increase when clamping, it is convenient to better clamping fixed sliding sleeve, avoid clamping block to move, affect the stability of workpiece clamping.

Description

Technical Field

[0001] This utility model relates to the field of CNC machining center technology, and specifically to a finely adjustable positioning fixture. Background Technology

[0002] A CNC machining center is an advanced machining equipment, also known as a computer numerical control machining center. It is a type of CNC machine tool primarily used for high-precision, high-efficiency machining. Its core principle is the automated control of the machining equipment through computer programs to achieve complex machining tasks.

[0003] During the machining process of CNC machining centers, locating fixtures are typically used to hold and fix the workpiece. However, workpieces are not always regular in shape. For irregular workpieces, the contact area between the clamping plate and the side wall of the irregular workpiece is relatively small when using a conventional locating fixture, making the clamping of irregular workpieces unstable. Therefore, how to achieve stable clamping of irregular workpieces is an important problem that needs to be solved in the design of fine-tunable locating fixtures. Utility Model Content

[0004] This invention provides a finely adjustable positioning fixture to solve the problem of unstable clamping of irregular workpieces by positioning fixtures.

[0005] This utility model solves the above-mentioned technical problems through the following technical solutions: This utility model provides a finely adjustable positioning fixture, including a mounting base, and further comprising: A clamping structure is mounted on a mounting base; A fine-tuning structure is disposed within the fixture structure; A fixed clamping structure is disposed between the fine-tuning structures, and the fixed clamping structure fixes and restricts the fine-tuning structures.

[0006] Preferably, two movable cavities are formed in the side wall of the mounting base, and sliding grooves are formed on the top side wall of the two movable cavities.

[0007] Preferably, the clamping structure includes a motor, a threaded rod, a connecting rod, and a threaded rod. The connecting rod is rotatably connected to the side wall in the middle of the mounting base. The two ends of the connecting rod are respectively fixedly connected to the threaded rod and the threaded rod. The other end of the threaded rod is rotatably connected to the inner side wall of the moving cavity. The motor is fixedly connected to the inner side wall of the moving cavity, and the rotating end of the motor is fixedly connected to the other end of the threaded rod.

[0008] In this technical solution, the rotation of motor one drives the rotation of threaded rod one, threaded rod one drives the rotation of connecting rod one, and connecting rod drives the rotation of threaded rod two.

[0009] Preferably, the clamping structure includes a movable plate, a fixed housing, a clamping pad, and a movable block. The movable block is threadedly connected to a threaded rod and a threaded rod, and is slidably connected in a sliding groove. The movable plate is fixedly connected to the top of the movable block, the fixed housing is fixedly connected to the side wall of the movable plate, and the clamping pad is fixedly connected to the side wall of the fixed housing.

[0010] In this technical solution, the rotation of threaded rod one and threaded rod two drives the moving block to move, the moving block drives the moving plate to move, the moving plate drives the fixed housing to move, and the fixed housing drives the clamping pad one to move, so that the clamping pad one tightly abuts against the side wall of the workpiece and fixes the workpiece.

[0011] Preferably, a support plate is fixedly connected to the inner wall of the fixed housing.

[0012] In this technical solution, the support plate supports the motor.

[0013] Preferably, the fine-tuning structure includes a second motor, a first rotating gear, a third threaded rod, a threaded sleeve, a first sliding block, and a transmission gear. The first rotating gear and the transmission gear are rotatably connected to the inner sidewall of the fixed housing. The third threaded rod is fixedly connected to the sidewall of the first rotating gear. A square threaded sleeve is threaded onto the third threaded rod. The first sliding block is fixedly connected to the top and bottom sidewalls of the threaded sleeve. The second motor is fixedly connected to the sidewall of the moving plate. The rotating end of the second motor is fixedly connected to the first rotating gear. The first rotating gear and the transmission gear mesh with each other.

[0014] In this technical solution, the rotation of motor 2 drives the rotation of gear 1, which in turn drives the rotation of threaded rod 1, which in turn drives the movement of threaded sleeve 1.

[0015] Preferably, the fine-tuning structure includes a second sliding block, a sliding sleeve, a spring, a clamping block, and a second clamping pad. The sliding sleeve is slidably connected to the threaded sleeve. The second sliding block is fixedly connected to the top and bottom sidewalls of the sliding sleeve. The end of the sliding sleeve is fixedly connected to the clamping block. The second clamping pad is fixedly connected to the sidewall of the clamping block. The clamping block and the second clamping pad are slidably connected to the fixed housing and the first clamping pad. The spring is fixedly connected between the sliding sleeve and the clamping block.

[0016] In this technical solution, the threaded sleeve drives the sliding sleeve to move, the sliding sleeve drives the clamping block to move, and the clamping block drives the second clamping pad to move. After extending out of the fixed housing, it abuts against the recessed side wall of the workpiece. The spring can be elastically adjusted until both second clamping pads are tightly abutting against the side wall of the workpiece, increasing the clamping area with the irregular workpiece and making the irregular workpiece stably clamped. Preferably, the outer wall of the sliding sleeve is frosted.

[0017] Preferably, the fixed clamping structure includes a clamping frame, a second rotating gear, a first rotating rod, a third rotating gear, a second rotating rod, and a third motor. The third motor is fixedly connected to the side wall of the support plate. The rotating end of the third motor is fixedly connected to the second rotating rod. The other end of the second rotating rod is fixedly connected to the inner side wall of the fixed housing. The third rotating gear is fixedly connected to the side wall of the second rotating rod. The first rotating rod is rotatably connected between the support plate and the fixed housing. The second rotating gear and the clamping frame are fixedly connected to the side wall of the first rotating rod. The second rotating gear and the third rotating gear mesh with each other.

[0018] In this technical solution, the rotation of motor three drives the rotation of rotating rod two, rotating rod two drives rotating gear three to rotate, rotating gear three drives rotating gear two to rotate, rotating gear two drives the rotating gear two below to rotate, rotating gear two drives rotating rod one to rotate, rotating rod one drives the clamping frame to rotate, so that the clamping frame is tightly clamped on the side wall of the sliding sleeve.

[0019] Preferably, the side wall of the clamping frame is frosted, and the two rotating gears on the same side mesh with each other.

[0020] In this technical solution, the frosted sidewalls increase the frictional resistance during clamping.

[0021] Based on common knowledge in the field, the above-mentioned preferred conditions can be combined arbitrarily to obtain various preferred embodiments of this utility model.

[0022] The positive and progressive effects of this utility model are as follows: 1. The rotation of motor one drives the fixed housing to move, so that clamping pad one is tightly pressed against the side wall of the workpiece, thus fixing the workpiece. When the workpiece surface is uneven, motor two rotates to drive the clamping block to move, and the clamping block drives clamping pad two to move, pressing against the concave side wall of the workpiece. The spring can be elastically adjusted until both clamping pads two are tightly pressed against the side wall of the workpiece, increasing the clamping area with irregular workpieces, which facilitates better and more stable clamping of irregular workpieces.

[0023] 2. The rotation of motor three drives the rotation of gear two, which in turn drives the rotation of rod one, which in turn drives the clamping frame to rotate. This causes the clamping frame to be tightly clamped onto the side wall of the sliding sleeve. The frosted side wall increases the frictional resistance during clamping, which facilitates better clamping and fixing of the sliding sleeve and prevents the clamping block from moving, thus affecting the stability of the workpiece clamping. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model.

[0025] Figure 2 This is a schematic diagram of the overall internal structure of this utility model.

[0026] Figure 3 This is a side view of the internal structure of the present invention.

[0027] Figure 4 This is a top view of the internal structure of the present invention.

[0028] Figure 5 This utility model Figure 2 A magnified schematic diagram of the structure at point A.

[0029] Figure 6 This utility model Figure 2 A magnified schematic diagram of the structure at point B.

[0030] Explanation of reference numerals in the attached figures 1. Mounting base; 2. Sliding groove; 3. Clamping structure; 301. Moving plate; 302. Fixed housing; 303. Clamping pad one; 304. Moving block; 311. Motor one; 312. Threaded rod one; 313. Connecting rod; 314. Threaded rod two; 4. Fine-tuning structure; 401. Motor two; 402. Rotating gear one; 403. Threaded rod three; 404. Threaded sleeve; 405. Sliding block one; 406. Transmission gear; 411. Sliding block two; 412. Sliding sleeve; 413. Spring; 414. Clamping block; 415. Clamping pad two; 5. Moving cavity; 6. Fixed clamping structure; 601. Clamping frame; 602. Rotating gear two; 603. Rotating rod one; 604. Rotating gear three; 605. Rotating rod two; 606. Motor three; 7. Support plate. Detailed Implementation

[0031] The present invention will be further illustrated by way of embodiments below, but the present invention is not limited to the scope of the embodiments described herein.

[0032] like Figure 1-6 As shown, a finely adjustable positioning fixture includes a mounting base 1, and further includes: The clamp structure 3 is mounted on the mounting base 1; Fine-tuning structure 4 is disposed within fixture structure 3; A fixed clamping structure 6 is disposed between the fine-tuning structures 4, and the fixed clamping structure 6 fixes and restricts the fine-tuning structures 4.

[0033] The mounting base 1 has two movable cavities 5 inside its side wall, and the top side wall of the two movable cavities 5 has a sliding groove 2.

[0034] The clamp structure 3 includes a motor 311, a threaded rod 312, a connecting rod 313, and a threaded rod 314. The connecting rod 313 is rotatably connected to the side wall in the middle of the mounting base 1. The two ends of the connecting rod 313 are respectively fixedly connected to the threaded rod 312 and the threaded rod 314. The other end of the threaded rod 314 is rotatably connected to the inner side wall of the moving cavity 5. The motor 311 is fixedly connected to the inner side wall of the moving cavity 5. The rotating end of the motor 311 is fixedly connected to the other end of the threaded rod 312.

[0035] The rotation of motor 311 drives the rotation of threaded rod 312, which in turn drives the rotation of connecting rod 313, which in turn drives the rotation of threaded rod 314.

[0036] The clamping structure 3 includes a movable plate 301, a fixed housing 302, a clamping pad 303, and a movable block 304. The movable block 304 is threadedly connected to a threaded rod 312 and a threaded rod 314. The movable block 304 is slidably connected in a sliding groove 2. The top of the movable block 304 is fixedly connected to the movable plate 301. The fixed housing 302 is fixedly connected to the side wall of the movable plate 301. The clamping pad 303 is fixedly connected to the side wall of the fixed housing 302.

[0037] The rotation of threaded rod 312 and threaded rod 314 causes the moving block 304 to move, the moving block 304 causes the moving plate 301 to move, the moving plate 301 causes the fixed housing 302 to move, and the fixed housing 302 causes the clamping pad 303 to move, so that the clamping pad 303 tightly abuts against the side wall of the workpiece and fixes the workpiece.

[0038] The support plate 7 is fixedly connected to the inner wall of the fixed housing 302.

[0039] Support plate 7 supports motor 3606.

[0040] The fine-tuning structure 4 includes a second motor 401, a first rotating gear 402, a third threaded rod 403, a threaded sleeve 404, a first sliding block 405, and a transmission gear 406. The first rotating gear 402 and the transmission gear 406 are rotatably connected to the inner sidewall of the fixed housing 302. The third threaded rod 403 is fixedly connected to the sidewall of the first rotating gear 402. A square threaded sleeve 404 is threaded onto the third threaded rod 403. The first sliding block 405 is fixedly connected to the top and bottom sidewalls of the threaded sleeve 404. The second motor 401 is fixedly connected to the sidewall of the moving plate 301. The rotating end of the second motor 401 is fixedly connected to the first rotating gear 402. The first rotating gear 402 and the transmission gear 406 mesh with each other.

[0041] The rotation of motor 2 401 drives the rotation of rotating gear 1 402, which in turn drives the rotation of threaded rod 1 312, which in turn drives the movement of threaded sleeve 404.

[0042] The fine-tuning structure 4 includes a second sliding block 411, a sliding sleeve 412, a spring 413, a clamping block 414, and a second clamping pad 415. The sliding sleeve 412 is slidably connected to the threaded sleeve 404. The second sliding block 411 is fixedly connected to the top and bottom sidewalls of the sliding sleeve 412. The clamping block 414 is fixedly connected to the end of the sliding sleeve 412. The second clamping pad 415 is fixedly connected to the sidewall of the clamping block 414. The clamping block 414 and the second clamping pad 415 are slidably connected to the fixed housing 302 and the first clamping pad 303. The spring 413 is fixedly connected between the sliding sleeve 412 and the clamping block 414.

[0043] The threaded sleeve 404 drives the sliding sleeve 412 to move, the sliding sleeve 412 drives the clamping block 414 to move, and the clamping block 414 drives the clamping pad 415 to move. After extending out of the fixed housing 302, the pads abut against the recessed side wall of the workpiece. The spring 413 can be elastically adjusted until both clamping pads 415 are tightly pressed against the side wall of the workpiece, increasing the clamping area with the irregular workpiece and making the irregular workpiece stably clamped. The outer wall of the sliding sleeve 412 is frosted.

[0044] The fixed clamping structure 6 includes a clamping frame 601, a second rotating gear 602, a first rotating rod 603, a third rotating gear 604, a second rotating rod 605, and a third motor 606. The third motor 606 is fixedly connected to the side wall of the support plate 7. The rotating end of the third motor 606 is fixedly connected to the second rotating rod 605. The other end of the second rotating rod 605 is fixedly connected to the inner side wall of the fixed housing 302. The third rotating gear 604 is fixedly connected to the side wall of the second rotating rod 605. The first rotating rod 603 is rotatably connected between the support plate 7 and the fixed housing 302. The second rotating gear 602 and the clamping frame 601 are fixedly connected to the side wall of the first rotating rod 603. The second rotating gear 602 and the third rotating gear 604 mesh with each other.

[0045] The rotation of motor 3 606 drives the rotation rod 2 605 to rotate, the rotation rod 2 605 drives the rotation gear 3 604 to rotate, the rotation gear 3 604 drives the rotation gear 2 602 to rotate, the rotation gear 2 602 drives the lower rotation gear 2 602 to rotate, the rotation gear 2 602 drives the rotation rod 1 603 to rotate, and the rotation rod 1 603 drives the clamping frame 601 to rotate, so that the clamping frame 601 is tightly clamped on the side wall of the sliding sleeve 412.

[0046] The side wall of the clamping frame 601 is frosted, and the two rotating gears 602 located on the same side mesh with each other.

[0047] The frosted sidewalls increase the frictional resistance during clamping.

[0048] In use, all electrical components mentioned in this application are connected to an external power supply and control switch. When the workpiece is placed on the top of the mounting base 1, the rotation of motor 311 drives the rotation of threaded rod 312, which in turn drives the rotation of connecting rod 313. The connecting rod 313 drives the rotation of threaded rod 314, which in turn drives the rotation of threaded rod 312 and threaded rod 314. The rotation of threaded rod 312 and threaded rod 314 drives the movement of moving block 304, which in turn drives the movement of moving plate 301. The movement of moving plate 301 drives the movement of fixed housing 302, which in turn drives the movement of clamping pad 303. This causes clamping pad 303 to press tightly against the side wall of the workpiece, thus fixing the workpiece in place. This is useful when the surface of the workpiece is uneven. When motor 2 401 is started, the rotation of motor 2 401 drives the rotation of gear 1 402, which in turn drives the rotation of threaded rod 1 312. Threaded rod 1 312 drives threaded sleeve 404 to move, threaded sleeve 404 drives sliding sleeve 412 to move, sliding sleeve 412 drives clamping block 414 to move, and clamping block 414 drives clamping pad 2 415 to move. After extending out of the fixed housing 302, it abuts against the recessed side wall of the workpiece. Spring 413 can be elastically adjusted until both clamping pads 2 415 are tightly abutting against the side wall of the workpiece, increasing the clamping area with the irregular workpiece and making the irregular workpiece stably clamped. The rotation of motor 3 606 drives the rotation rod 2 605 to rotate, which in turn drives the rotation gear 3 604 to rotate. The rotation gear 3 604 drives the rotation gear 2 602 to rotate, which in turn drives the lower rotation gear 2 602 to rotate. The rotation of the rotation gear 2 602 drives the rotation rod 1 603 to rotate, which in turn drives the clamping frame 601 to rotate. This causes the clamping frame 601 to be tightly clamped onto the side wall of the sliding sleeve 412. The frosted side wall increases the frictional resistance during clamping, thus allowing the clamping frame 601 to better clamp and fix the sliding sleeve 412, preventing the clamping block 414 from moving and affecting the stability of the workpiece clamping.

[0049] This utility model is not limited to the above-described embodiments. Any changes in its shape or structure fall within the protection scope of this utility model. The protection scope of this utility model is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principles and essence of this utility model, but all such changes and modifications fall within the protection scope of this utility model.

Claims

1. A finely adjustable positioning fixture, comprising a mounting base (1), characterized in that, Also includes: The clamping structure (3) is mounted on the mounting base (1); Fine-tuning structure (4), wherein the fine-tuning structure (4) is disposed within the fixture structure (3); A fixed clamping structure (6) is disposed between the fine-tuning structures (4) and the fixed clamping structure (6) fixes and restricts the fine-tuning structures (4).

2. The adjustable positioning fixture as described in claim 1, characterized in that: The mounting base (1) has two movable cavities (5) in the side wall, and sliding grooves (2) are provided on the top side walls of the two movable cavities (5).

3. The adjustable positioning fixture as described in claim 1, characterized in that: The clamp structure (3) includes a motor (311), a threaded rod (312), a connecting rod (313), and a threaded rod (314). The connecting rod (313) is rotatably connected to the side wall in the middle of the mounting base (1). The two ends of the connecting rod (313) are respectively fixedly connected to the threaded rod (312) and the threaded rod (314). The other end of the threaded rod (314) is rotatably connected to the inner side wall of the moving cavity (5). The motor (311) is fixedly connected to the inner side wall of the moving cavity (5). The rotating end of the motor (311) is fixedly connected to the other end of the threaded rod (312).

4. The adjustable positioning fixture as described in claim 3, characterized in that: The clamping structure (3) includes a movable plate (301), a fixed housing (302), a clamping pad (303), and a movable block (304). The movable block (304) is threadedly connected to a threaded rod (312) and a threaded rod (314). The movable block (304) is slidably connected in a sliding groove (2). The top of the movable block (304) is fixedly connected to the movable plate (301). The fixed housing (302) is fixedly connected to the side wall of the movable plate (301). The clamping pad (303) is fixedly connected to the side wall of the fixed housing (302).

5. The adjustable positioning fixture as described in claim 4, characterized in that: The support plate (7) is fixedly connected to the inner wall of the fixed housing (302).

6. The adjustable positioning fixture as described in claim 1, characterized in that: The fine-tuning structure (4) includes a second motor (401), a first rotating gear (402), a third threaded rod (403), a threaded sleeve (404), a first sliding block (405), and a transmission gear (406). The first rotating gear (402) and the transmission gear (406) are rotatably connected to the inner sidewall of the fixed housing (302). The third threaded rod (403) is fixedly connected to the sidewall of the first rotating gear (402). A square threaded sleeve (404) is threaded onto the third threaded rod (403). The first sliding block (405) is fixedly connected to the top and bottom sidewalls of the threaded sleeve (404). The second motor (401) is fixedly connected to the sidewall of the moving plate (301). The rotating end of the second motor (401) is fixedly connected to the first rotating gear (402). The first rotating gear (402) and the transmission gear (406) mesh with each other.

7. The adjustable positioning fixture as described in claim 1, characterized in that: The fine-tuning structure (4) includes a second sliding block (411), a sliding sleeve (412), a spring (413), a clamping block (414), and a second clamping pad (415). The sliding sleeve (412) is slidably connected to the threaded sleeve (404). The second sliding block (411) is fixedly connected to the side walls of the top and bottom of the sliding sleeve (412). The end of the sliding sleeve (412) is fixedly connected to the clamping block (414). The second clamping pad (415) is fixedly connected to the side wall of the clamping block (414). The clamping block (414) and the second clamping pad (415) are slidably connected to the fixed housing (302) and the first clamping pad (303). The spring (413) is fixedly connected between the sliding sleeve (412) and the clamping block (414).

8. The adjustable positioning fixture as described in claim 7, characterized in that: The outer wall of the sliding sleeve (412) is frosted.

9. The adjustable positioning fixture as described in claim 1, characterized in that: The fixed clamping structure (6) includes a clamping frame (601), a second rotating gear (602), a first rotating rod (603), a third rotating gear (604), a second rotating rod (605), and a third motor (606). The third motor (606) is fixedly connected to the side wall of the support plate (7). The rotating end of the third motor (606) is fixedly connected to the second rotating rod (605). The other end of the second rotating rod (605) is fixedly connected to the inner side wall of the fixed housing (302). The third rotating gear (604) is fixedly connected to the side wall of the second rotating rod (605). The first rotating rod (603) is rotatably connected between the support plate (7) and the fixed housing (302). The second rotating gear (602) and the clamping frame (601) are fixedly connected to the side wall of the first rotating rod (603). The second rotating gear (602) and the third rotating gear (604) mesh with each other.

10. The adjustable positioning fixture as described in claim 9, characterized in that: The side wall of the clamping frame (601) is frosted, and the two rotating gears (602) on the same side mesh with each other.

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