CN214162207U - Machine tool workpiece clamping mechanism - Google Patents
Machine tool workpiece clamping mechanism Download PDFInfo
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- CN214162207U CN214162207U CN202023339379.9U CN202023339379U CN214162207U CN 214162207 U CN214162207 U CN 214162207U CN 202023339379 U CN202023339379 U CN 202023339379U CN 214162207 U CN214162207 U CN 214162207U
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- clamping mechanism
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Abstract
本实用新型提供了一种机床工件夹紧机构，属于机械技术领域。它解决了现有的夹紧机构效率不佳的问题。本机床工件夹紧机构包括具备凹腔的基座以及并列设置在基座上的左夹爪和右夹爪，左夹爪和右夹爪均与基座滑动连接，凹腔内设有上齿条、下齿条以及啮合在上齿条和下齿条之间的齿轮，齿轮通过转轴与基座转动连接，上齿条右端与右夹爪固连，基座外设有用于驱动下齿条左右平移的驱动件，凹腔内还竖直设有连接板，连接板下端和上端分别与下齿条左端和左夹爪固连；上齿条左端向左延伸一体成型有直杆状导部，导部和上齿条同轴，连接板上对应设有与导部匹配的导孔，导部穿设在导孔内，导部侧壁与导孔孔壁贴靠。本机床工件夹紧机构效率高。
The utility model provides a workpiece clamping mechanism of a machine tool, which belongs to the technical field of machinery. It solves the problem of inefficiency of the existing clamping mechanism. The workpiece clamping mechanism of the machine tool includes a base with a concave cavity, and left and right clamping jaws arranged on the base in parallel. The rack, the lower rack and the gear meshed between the upper rack and the lower rack, the gear is rotatably connected with the base through the rotating shaft, the right end of the upper rack is fixedly connected with the right clamping claw, and the base is provided with a drive for the lower rack The driving member for left and right translation has a connecting plate vertically in the cavity, and the lower end and the upper end of the connecting plate are respectively fixed with the left end of the lower rack and the left clamping jaw; the left end of the upper rack extends to the left and is integrally formed with a straight rod-shaped guide portion. The guide part and the upper rack are coaxial, the connecting plate is provided with a guide hole matching the guide part, the guide part is penetrated in the guide hole, and the side wall of the guide part abuts against the guide hole wall. The workpiece clamping mechanism of the machine tool has high efficiency.
Description
Technical Field
The utility model belongs to the technical field of machinery, a lathe, especially a lathe work piece clamping mechanism are related to.
Background
Machine tools are machines for manufacturing machines, also called machine tools or machine tools, which are conventionally referred to as machine tools for short.
The workpiece clamping mechanism is an important component of a machine tool and generally comprises two clamping jaws and a driving mechanism for driving the two clamping jaws to approach or separate from each other. Among them, the driving mechanism can be classified into a rack and pinion driving type and a lead screw nut driving type, and a driving source of the rack and pinion driving type may employ a motor or a cylinder (oil cylinder). When the air cylinder (oil cylinder) is adopted, one clamping jaw of the two clamping jaws is in a fixed state, and the other clamping jaw is driven by the air cylinder (oil cylinder) in cooperation with the gear rack, so that the clamping jaws are formed longer, the time for finishing clamping or loosening a workpiece is prolonged, and the efficiency is poor.
SUMMERY OF THE UTILITY MODEL
The utility model aims at having the above-mentioned problem to current technique, provided an efficient and stable good lathe work piece clamping mechanism.
The purpose of the utility model can be realized by the following technical proposal: a machine tool workpiece clamping mechanism comprises a base with a concave cavity, a left clamping jaw and a right clamping jaw, wherein the left clamping jaw and the right clamping jaw are arranged on the base in parallel, the left clamping jaw and the right clamping jaw are connected with the base in a sliding mode, an upper rack, a lower rack and a gear meshed between the upper rack and the lower rack are arranged in the concave cavity, the gear is rotatably connected with the base through a rotating shaft, the right end of the upper rack is fixedly connected with the right clamping jaw, a driving piece used for driving the lower rack to translate left and right is arranged outside the base, and the machine tool workpiece clamping mechanism is characterized in that a connecting plate is also vertically arranged in the concave cavity, and the lower end and the upper end of the connecting plate are fixedly connected with the left end of the lower rack and the left clamping jaw respectively; the left end of the upper rack extends leftwards to form a guide part in a straight rod shape in an integrated mode, the guide part and the upper rack are coaxial, a guide hole matched with the guide part is correspondingly formed in the connecting plate, the guide part penetrates through the guide hole, and the side wall of the guide part is attached to the wall of the guide hole.
When the clamping device is used, the driving piece pushes the lower rack to move so as to drive the gear to rotate, so that the upper rack is driven to move reversely, and the left clamping jaw and the right clamping jaw are close to each other or far away from each other so as to clamp or loosen a workpiece.
In this application, under parts cooperation such as lower rack, gear, upper rack, driving piece, connecting plate to realize the synchronous opposite movement of left clamping jaw and right clamping jaw, in order to reduce the centre gripping or unclamp the required time of work piece, with improvement work efficiency.
The guide part is matched with the guide hole, so that the motion of the upper rack and the lower rack is synchronously guided, the upper rack and the lower rack are better supported, the moving stability of the upper rack and the lower rack is improved, and the working stability is improved.
In the above-mentioned machine tool workpiece clamping mechanism, the wall of the guide hole is provided with strip-shaped holes which penetrate through along the axial direction of the guide hole, at least two strip-shaped holes are uniformly distributed along the circumferential direction of the guide hole, and a guide groove for filling lubricating grease is formed between the wall of the strip-shaped hole and the side wall of the guide part. A guide groove for storing lubricating grease is formed between the guide part and the guide hole, so that the contact part of the guide part and the guide hole is well lubricated, and the moving stability of the upper rack and the lower rack is ensured, thereby further improving the working stability.
In the machine tool workpiece clamping mechanism, the guide hole is square, and the cross section of the guide part is square matched with the guide hole, so that the upper rack and the lower rack are further limited in the circumferential direction, and the running stability is improved.
In foretell lathe work piece clamping mechanism, be equipped with the spout that runs through about on the base, the spout has two and distributes along the pivot axial, all has two slider portions that match with the spout on left clamping jaw and the right clamping jaw, and slider portion slides and sets up in the spout that corresponds, realizes left clamping jaw and right clamping jaw and frame sliding connection.
In the above machine tool workpiece clamping mechanism, the cross section of the chute is in a V shape, the chute is composed of a horizontal plane and an inclined plane, the horizontal plane is located between the upper rack and the inclined plane, and at this time, the sliding block part is in a V shape matched with the chute so as to further limit the upper clamping jaw and the lower clamping jaw in the vertical direction, thereby further improving the working stability.
As another scheme, in the above machine tool workpiece clamping mechanism, two guide rails are fixed on the base, the length of the guide rails extends along the left-right direction, the two guide rails are axially distributed along the rotating shaft, two guide blocks matched with the guide rails are fixed on the left clamping jaw and the right clamping jaw, and the guide blocks are installed on the corresponding guide rails.
In the above machine tool workpiece clamping mechanism, the driving member is an air cylinder or an oil cylinder.
Compared with the prior art, the machine tool workpiece clamping mechanism has the following advantages:
1. in this application, under parts cooperation such as lower rack, gear, upper rack, driving piece, connecting plate to realize the synchronous opposite movement of left clamping jaw and right clamping jaw, in order to reduce the centre gripping or unclamp the required time of work piece, with improvement work efficiency.
2. The guide part is matched with the guide hole, so that the motion of the upper rack and the lower rack is synchronously guided, the upper rack and the lower rack are better supported, the moving stability of the upper rack and the lower rack is improved, and the working stability is improved.
3. A guide groove for storing lubricating grease is formed between the guide part and the guide hole, so that the contact part of the guide part and the guide hole is well lubricated, and the moving stability of the upper rack and the lower rack is ensured, thereby further improving the working stability.
Drawings
Fig. 1 is a schematic structural view of a machine tool workpiece clamping mechanism.
Fig. 2 is a schematic view of a connection structure of the guide and the connection plate.
Fig. 3 is a schematic view of the connection structure of the left clamping jaw or the right clamping jaw and the base.
In the figure, 1, a base; 1a, a concave cavity; 1b, a horizontal plane; 1c, a bevel; 2. a left clamping jaw; 3. a right jaw; 4. a slider portion; 5. an upper rack; 5a, a guide part; 6. a lower rack; 7. a gear; 8. a rotating shaft; 9. a connecting rod; 10. a drive member; 11. a connecting plate; 11a, strip-shaped holes; 12. lubricating grease.
Detailed Description
The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.
Example one
As shown in fig. 1 and 3, the workpiece clamping mechanism of the machine tool comprises a base 1 with a concave cavity 1a, and a left clamping jaw 2 and a right clamping jaw 3 which are arranged on the base 1 in parallel, wherein the left clamping jaw 2 and the right clamping jaw 3 are connected with the base 1 in a sliding manner. In this embodiment, the spout that runs through about being equipped with on base 1, the spout has two and the distribution direction perpendicular with left clamping jaw 2 and 3 distribution directions of right clamping jaw, all has two slider portions 4 that match with the spout on left clamping jaw 2 and the right clamping jaw 3, and slider portion 4 slides and sets up in the spout that corresponds, realizes left clamping jaw 2 and right clamping jaw 3 and frame sliding connection. Further, the cross section of the sliding chute is in a V shape, the sliding chute is composed of a horizontal plane 1b and an inclined plane 1c, an included angle between the horizontal plane 1b and the inclined plane 1c is an acute angle, the horizontal plane 1b is located between the bottom wall of the base 1 and the inclined plane 1c, and at the moment, the sliding block part 4 is in a V shape matched with the sliding chute so as to effectively limit the upper clamping jaw and the lower clamping jaw in the vertical direction and improve the sliding stability.
Specifically, an upper rack 5 and a lower rack 6 are horizontally arranged in the cavity 1a, a gear 7 is engaged between the upper rack 5 and the lower rack 6, and the gear 7 is rotatably connected with the base 1 through a rotating shaft 8. In the actual product, 8 one ends of pivot are connected with base 1 through the bearing, and 8 other ends of pivot and gear 7 link firmly. Wherein, go up 5 right-hand members of rack and right clamping jaw 3 and link firmly, preferably go up rack 5 and link firmly with right clamping jaw 3 through the connecting rod 9 of vertical setting. A driving member 10 for driving the lower rack 6 to translate left and right is arranged outside the base 1, in this embodiment, the left end of the lower rack 6 extends out of the cavity 1a, the driving member 10 is an oil cylinder or an air cylinder, and a piston rod of the driving member 10 is fixedly connected with the lower rack 6. As shown in fig. 1 and 2, a connecting plate 11 is also vertically arranged in the cavity 1a, and the lower end and the upper end of the connecting plate 11 are fixedly connected with the left end of the lower rack 6 and the left clamping jaw 2 respectively; the left end of the upper rack 5 extends leftwards to form a guide part 5a in a straight rod shape in an integrated mode, the guide part 5a is coaxial with the upper rack 5, a guide hole matched with the guide part 5a is correspondingly formed in the connecting plate 11, the guide part 5a penetrates through the guide hole, and the side wall of the guide part 5a is attached to the wall of the guide hole. When the clamping device is used, the driving piece 10 pushes the lower rack 6 to move so as to drive the gear 7 to rotate, so that the upper rack 5 is driven to move reversely, and the left clamping jaw 2 and the right clamping jaw 3 are close to each other or far away from each other so as to clamp or loosen a workpiece.
Further, the hole wall of the guide hole is provided with at least two strip-shaped holes 11a which penetrate through the guide hole along the axial direction, the strip-shaped holes 11a are uniformly distributed along the circumferential direction of the guide hole, and a guide groove for filling lubricating grease 12 is formed between the hole wall of the strip-shaped holes 11a and the side wall of the guide part 5 a. A guide groove for storing lubricating grease 12 is formed between the guide part 5a and the strip-shaped hole 11a, so that the contact part of the guide part 5a and the guide hole is well lubricated, and the moving stability of the upper rack 5 and the lower rack 6 is ensured, thereby further improving the working stability. In the present embodiment, the guide hole is square, and the cross section of the guide part 5a is square matching with the guide hole, so as to further limit the upper rack 5 and the lower rack 6 in the circumferential direction, thereby improving the running stability; the number of the strip-shaped holes 11a is preferably 2.
Example two
The second embodiment is basically the same as the first embodiment in structure and principle, and the difference lies in: two guide rails are fixed on the base 1, the length of the guide rails extends along the left-right direction, the two guide rails are axially distributed along the rotating shaft 8, two guide blocks matched with the guide rails are fixed on the left clamping jaw 2 and the right clamping jaw 3, and the guide blocks are installed on the corresponding guide rails.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.
Claims (7)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023339379.9U CN214162207U (en) | 2020-12-31 | 2020-12-31 | Machine tool workpiece clamping mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023339379.9U CN214162207U (en) | 2020-12-31 | 2020-12-31 | Machine tool workpiece clamping mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214162207U true CN214162207U (en) | 2021-09-10 |
Family
ID=77611897
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023339379.9U Expired - Fee Related CN214162207U (en) | 2020-12-31 | 2020-12-31 | Machine tool workpiece clamping mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214162207U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117086656A (en) * | 2023-07-20 | 2023-11-21 | 山东建筑大学 | A double cam lifting clamping mechanism |
-
2020
- 2020-12-31 CN CN202023339379.9U patent/CN214162207U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117086656A (en) * | 2023-07-20 | 2023-11-21 | 山东建筑大学 | A double cam lifting clamping mechanism |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210910 |
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| CF01 | Termination of patent right due to non-payment of annual fee |