Clamp for machining

Abstract

The utility model relates to the technical field of machining tools, and discloses a machining clamp which comprises a clamp shell, a positioning placing plate, an auxiliary positioning plate, a first lead screw, a first motor, a second motor and a second lead screw. The clamp shell is provided with an inner cavity. The positioning placing plate is slidably connected into an inner cavity of the clamp shell. The auxiliary positioning plate is slidably connected to the side wall of an inner cavity of the clamp shell. The bottom face of the auxiliary positioning plate is slidably connected with the top face of the positioning containing plate. The first motor drives the first lead screw. The auxiliary positioning plate is in threaded connection with the first lead screw. The second motor drives the second lead screw. Connecting blocks are arranged at the bottoms of the positioning placing plates. The second lead screw penetrates through the connecting block. The connecting block is in threaded connection with the second lead screw. The second motor drives the second lead screw to drive the connecting block to move, and then the first motor drives the first lead screw to drive the auxiliary positioning plate to move on the positioning placing plate, so that a preliminarily clamped product is further fixed, and the stability is enhanced.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical processing tools, in particular to a clamp for mechanical processing. Background Art

[0002] A fixture is a tool used to fix workpieces or process equipment. It can provide support, positioning, locking and other functions to ensure that the workpiece remains in a stable position during processing. However, traditional fixtures have poor adaptability and can usually only adapt to workpieces of specific sizes and shapes. In addition, the clamping force is difficult to control, which can easily cause the workpiece to move or shake during processing.

[0003] In the prior art, a spring is connected to the inside of a fixed splint, and a round-head splint is connected to the outer end of the spring. Thus, the width of the round-head splint can be adjusted according to the size of the workpiece, thereby facilitating the use of the device. At the same time, because the end of the round-head splint that touches the workpiece is arc-shaped, damage to the workpiece during use can be prevented. However, the adaptability and fixing performance of the device are poor. Once the size of the product is small, instability may occur during the processing.

[0004] In order to solve the above problems, we propose a clamp for machining. Utility Model Content

[0005] The purpose of the utility model is to provide a mechanical processing fixture to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a mechanical processing fixture, comprising a fixture housing, a positioning and placing plate, an auxiliary positioning plate, a first screw, a first motor, a second motor and a second screw; the fixture housing is provided with an inner cavity; a placing opening is provided on the top of the fixture housing; the inner cavity of the fixture housing is connected to the placing opening; the positioning and placing plate is slidably connected to the inner cavity of the fixture housing; the auxiliary positioning plate is slidably connected to the side wall of the inner cavity of the fixture housing; the bottom surface of the auxiliary positioning plate is slidably connected to the top surface of the positioning and placing plate;

[0007] The first motor includes a driving end and a fixed end; the fixed end of the first motor is connected to the outer wall of the fixture housing; the driving end of the first motor passes through the side wall of the fixture housing and is connected to one end of the first lead screw; the other end of the first lead screw is rotatably connected to the inner wall of the fixture housing; the first lead screw passes through the auxiliary positioning plate; the auxiliary positioning plate is threadedly connected to the first lead screw;

[0008] The second motor includes a driving end and a fixed end; the fixed end of the second motor is connected to the outer wall of the clamp housing; the second motor is located on a side wall of the clamp housing adjacent to the side wall of the first motor; the driving end of the second motor passes through the side wall of the clamp housing and is connected to one end of the second lead screw; the other end of the second lead screw is rotatably connected to the inner cavity side wall of the clamp housing; a connecting block is provided at the bottom of the positioning plate; the second lead screw passes through the connecting block; the connecting block is threadedly connected to the second lead screw.

[0009] Preferably, a movable opening is provided on a side surface of the clamp housing; and one end of the positioning plate is slidably connected to the movable opening of the clamp housing.

[0010] Preferably, a sliding opening is provided on an inner cavity wall of one side of the clamp housing; the sliding opening is connected to the inner cavity of the clamp housing; the first lead screw is arranged in the sliding opening; the first lead screw is rotatably connected to a side wall of the sliding opening at one end away from the first motor.

[0011] Preferably, the cross-section of the positioning plate is L-shaped.

[0012] Preferably, a limit plate and a support plate are provided in the inner cavity of the clamp shell; the limit plate is arranged on the side wall of the clamp shell; the support plate is arranged at the bottom of the inner cavity of the clamp shell; the top surface of the support plate is flush with the top surface of the limit plate; the bottom surface of the positioning plate is abutted against the top surface of the support plate and the top surface of the limit plate; the side wall of the connecting block is abutted against the side wall of the limit plate.

[0013] Preferably, a guide block is also provided on the bottom surface of the positioning plate; a guide rod is provided in the inner cavity of the clamp shell; the two ends of the guide rod are respectively connected to a group of opposite side walls of the inner cavity of the clamp shell; the guide block is slidably connected to the guide rod; the sliding direction of the guide block is consistent with the moving direction of the connecting block.

[0014] Preferably, a limiting groove is provided at the connection between the inner cavity of the clamp housing and the second lead screw; and the end of the second lead screw away from the second motor is rotatably connected to the limiting groove.

[0015] Compared with the prior art, the utility model has the following beneficial effects: the mechanical processing fixture can drive the second lead screw through the second motor to drive the connection block to move, and can drive the positioning plate to move. The product to be mechanically processed is initially clamped between the positioning plate and the left inner wall of the fixture housing, which is beneficial for processing products of various sizes and shapes. Then, the auxiliary positioning plate is driven by the first motor to move on the positioning plate, and the initially clamped product can be further fixed, which is beneficial for ensuring the stability of the product during the processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structural isometric side of the utility model;

[0017] Figure 2 It is a schematic cross-sectional view of the structure of the utility model from the first viewing angle;

[0018] Figure 3 It is a cross-sectional schematic diagram of the structure of the utility model from a second viewing angle;

[0019] Figure 4 It is a cross-sectional schematic diagram of the structural limiting groove of the utility model.

[0020] In the figure: 1-clamp housing; 2-positioning plate; 3-auxiliary positioning plate; 4-first screw; 5-first motor; 6-sliding port; 7-second motor; 8-second screw; 9-connecting block; 10-limiting plate; 11-support plate; 12-guide block; 13-guide rod; 14-limiting groove. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 The utility model provides a technical solution: a fixture for mechanical processing, including a fixture housing 1, a positioning and placing plate 2, an auxiliary positioning plate 3, a first screw 4, a first motor 5, a second motor 7 and a second screw 8. The fixture housing 1 is provided with an inner cavity. A placing opening is provided at the top of the fixture housing 1. The inner cavity of the fixture housing 1 is connected to the placing opening. The positioning and placing plate 2 is slidably connected to the inner cavity of the fixture housing 1. The auxiliary positioning plate 3 is slidably connected to the side wall of the inner cavity of the fixture housing 1. The bottom surface of the auxiliary positioning plate 3 is slidably connected to the top surface of the positioning and placing plate 2.

[0023] The first motor 5 includes a driving end and a fixed end. The fixed end of the first motor 5 is connected to the outer wall of the clamp housing 1. The driving end of the first motor 5 passes through the side wall of the clamp housing 1 and is connected to one end of the first lead screw 4. The other end of the first lead screw 4 is rotatably connected to the inner cavity side wall of the clamp housing 1. The first lead screw 4 passes through the auxiliary positioning plate 3. The auxiliary positioning plate 3 is threadedly connected to the first lead screw 4.

[0024] The second motor 7 includes a driving end and a fixed end. The fixed end of the second motor 7 is connected to the outer wall of the clamp housing 1. The second motor 7 is located on a side wall of the clamp housing 1 adjacent to the side wall of the first motor 5. The driving end of the second motor 7 passes through the side wall of the clamp housing 1 and is connected to one end of the second lead screw 8. The other end of the second lead screw 8 is rotatably connected to the inner cavity side wall of the clamp housing 1. A connecting block 9 is provided at the bottom of the positioning and placing plate 2. The second lead screw 8 passes through the connecting block 9. The connecting block 9 is threadedly connected to the second lead screw 8.

[0025] The moving direction of the auxiliary positioning plate 3 is perpendicular to the moving direction of the positioning and placing plate 2. In other words, the first lead screw 4 and the second lead screw 8 are perpendicular to each other.

[0026] Furthermore, a movable opening is provided on one side of the fixture housing 1. One end of the positioning plate 2 is slidably connected to the movable opening of the fixture housing 1. The movable opening of the fixture housing 1 is used to enable the positioning plate 2 to move in the movable opening, and the positioning plate 2 passes through the movable opening.

[0027] Furthermore, a sliding opening 6 is provided on one side inner cavity wall of the clamp housing 1. The sliding opening 6 is connected to the inner cavity of the clamp housing 1. The first lead screw 4 is arranged in the sliding opening 6. One end of the first lead screw 4 away from the first motor 5 is rotatably connected to a side wall of the sliding opening 6. This design can prevent the first lead screw 4 from being exposed and obstructing the product that needs to be machined, thereby making it inconvenient for the operator to operate. Moreover, by arranging the first lead screw 4 in the sliding opening 6, the auxiliary positioning plate 3 can also be limited. Because the auxiliary positioning plate 3 needs to be provided with a connecting portion that is threadedly connected to the first lead screw 4. This connecting portion moves in the sliding opening 6, and the sliding opening 6 can produce a limiting effect to ensure that the auxiliary positioning plate 3 moves along the axial direction of the first lead screw 4.

[0028] Furthermore, the cross section of the positioning plate 2 is L-shaped. A baffle is provided on the top surface of the positioning plate 2 for positioning products that need to be machined.

[0029] Furthermore, a limit plate 10 and a support plate 11 are provided in the inner cavity of the clamp housing 1. The limit plate 10 is arranged on the side wall of the clamp housing 1. The support plate 11 is arranged at the bottom of the inner cavity of the clamp housing 1. The top surface of the support plate 11 is flush with the top surface of the limit plate 10. The bottom surface of the positioning plate 2 is against the top surface of the support plate 11 and the top surface of the limit plate 10. The side wall of the connecting block 9 is against the side wall of the limit plate 10. In the present utility model, the number of the limit plates 10 and the number of the support plates 11 are both two. The connecting block 9 is located between the two limit plates 10.

[0030] The two ends of the support plate 11 are respectively connected to a set of opposite side walls of the inner cavity of the clamp housing 1. The bottom surface of the limit plate 10 is connected to the bottom surface of the inner cavity of the clamp housing 1. The two end surfaces of the limit plate 10 are respectively connected to a set of opposite side walls of the inner cavity of the clamp housing 1. And the set of opposite side walls of the clamp housing 1 connected by the limit plate 10 is consistent with the set of opposite side walls of the inner cavity of the clamp housing 1 connected by the support plate 11.

[0031] Furthermore, a guide block 12 is further provided on the bottom surface of the positioning plate 2. A guide rod 13 is provided in the inner cavity of the fixture housing 1. The two ends of the guide rod 13 are respectively connected to a set of opposite side walls of the inner cavity of the fixture housing 1. The guide block 12 is slidably connected to the guide rod 13. The sliding direction of the guide block 12 is consistent with the moving direction of the connecting block 9.

[0032] Furthermore, a limiting groove 14 is provided at the connection between the inner cavity of the clamp housing 1 and the second lead screw 8. The end of the second lead screw 8 away from the second motor 7 is rotatably connected to the limiting groove 14. The depth of the limiting groove 14 is not less than the thickness of the side wall of the clamp housing 1. It is ensured that the second lead screw 8 has sufficient space for movement and that the second lead screw 8 will not fall off.

[0033] The fixture housing 1 is used to accommodate and protect the internal mechanical components. The second motor 7 is fixedly connected to the right surface of the fixture housing 1 to provide the main power source for the fixture. The second motor 7 drives the second lead screw 8 to rotate, and the output end of the second motor 7 is fixedly connected to the second lead screw 8, which is driven by the second motor 7 to rotate, thereby driving the connecting block 9 to move linearly, so as to adjust the position of the positioning plate 2.

[0034] The second lead screw 8 passes through the fixture housing 1 and extends to the inside of the fixture housing 1. The inner wall of the fixture housing 1 is provided with the limiting groove 14 for limiting the position of the second lead screw 8. The end of the second lead screw 8 away from the second motor 7 is located inside the limiting groove 14 for preventing the second lead screw 8 from deflecting. The side surface of the second lead screw 8 is movably connected with the connecting block 9 for movably connecting with the side surface of the second lead screw 8.

[0035] When the second lead screw 8 rotates, the connecting block 9 will move linearly thereon, thereby driving the positioning plate 2 to move. The connecting block 9 is located between the limiting plates 10. The top surface of the connecting block 9 is fixedly connected with the positioning plate 2 for placing the product to be processed. The cross-section of the positioning plate 2 is L-shaped, which helps to stably clamp the product between the fixture housing 1 and the positioning plate 2.

[0036] The first motor 5 is fixedly connected to the front surface of the clamp housing 1, and is used to drive the first lead screw 4 to rotate, thereby controlling the position of the auxiliary positioning plate 3. The first lead screw 4 is fixedly connected to the output end of the first motor 5, and is used to rotate through the drive of the first motor 5, so as to drive the auxiliary positioning plate 3 to move linearly, and further fix and position the product placed on the positioning and placement plate 2.

[0037] The side surface of the first lead screw 4 is movably connected with the auxiliary positioning plate 3, which is used to fix and position the product placed on the positioning and placement plate 2 to ensure the stability of the product during processing. The auxiliary positioning plate 3 is located on the upper surface of the positioning and placement plate 2, and the side wall of the fixture housing 1 is provided with the sliding opening 6, which is used to limit the range of movement of the auxiliary positioning plate 3 in the horizontal direction to ensure that the auxiliary positioning plate 3 can accurately move along the sliding opening 6. The first lead screw 4 is rotatably connected to the sliding opening 6, and the connection between the auxiliary positioning plate 3 and the first lead screw 4 is located inside the sliding opening 6. The support plate 11 is fixedly connected to the inner cavity of the fixture housing 1 to provide support for the positioning and placement plate 2 to ensure the stability of the positioning and placement plate 2 during movement. The limit plate 10 is fixedly connected to the bottom of the inner cavity of the fixture housing 1 to limit the moving trajectory of the connecting block 9.

[0038] The positioning plate 2 is located on the upper surface of the support plate 11 and the limit plate 10, and the inner cavity wall of the fixture housing 1 is fixedly connected with the guide rod 13. The lower surface of the positioning plate 2 is fixedly connected with the guide block 12, which is used in conjunction with the guide rod 13 to provide guidance for the movement of the positioning plate 2, ensuring that the positioning plate 2 moves along a predetermined trajectory during the movement process, thereby improving the positioning accuracy. The guide rod 13 passes through the guide block 12, and the sliding direction of the guide block 12 is consistent with the moving direction of the connecting block 9.

[0039] Working principle:

[0040] The product that needs to be machined is placed on the positioning plate 2, and the second motor 7 drives the second lead screw 8 so that the connecting block 9 moves between the limiting plates 10 along the axial direction of the second lead screw 8. The connecting block 9 can drive the positioning plate 2 to move along the axial direction of the second lead screw 8. Since the cross-section of the positioning plate 2 is L-shaped, the product that needs to be machined can be clamped between the fixture housing 1 and the positioning plate 2. And the first motor 5 drives the first lead screw 4 to drive the auxiliary positioning plate 3 to move in the sliding port 6. The auxiliary positioning plate 3 is located on the top surface of the positioning plate 2. Therefore, the product that needs to be machined can be fixed in multiple directions through the auxiliary positioning plate 3 and the positioning plate 2.

[0041] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0042] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A mechanical processing fixture, characterized in that: The clamp comprises a fixture housing (1), a positioning and placing plate (2), an auxiliary positioning plate (3), a first lead screw (4), a first motor (5), a second motor (7) and a second lead screw (8); the fixture housing (1) is provided with an inner cavity; a placing opening is provided at the top of the fixture housing (1); the inner cavity of the fixture housing (1) is connected to the placing opening; the positioning and placing plate (2) is slidably connected to the inner cavity of the fixture housing (1); the auxiliary positioning plate (3) is slidably connected to the side wall of the inner cavity of the fixture housing (1); the bottom surface of the auxiliary positioning plate (3) is slidably connected to the top surface of the positioning and placing plate (2); The first motor (5) comprises a driving end and a fixed end; the fixed end of the first motor (5) is connected to the outer wall of the clamp housing (1); the driving end of the first motor (5) passes through the side wall of the clamp housing (1) and is connected to one end of the first lead screw (4); the other end of the first lead screw (4) is rotatably connected to the inner wall of the clamp housing (1); the first lead screw (4) passes through the auxiliary positioning plate (3); the auxiliary positioning plate (3) is threadedly connected to the first lead screw (4); The second motor (7) includes a driving end and a fixed end; the fixed end of the second motor (7) is connected to the outer wall of the clamp housing (1); the second motor (7) is located on a side wall of the clamp housing (1) adjacent to the side wall of the first motor (5); the driving end of the second motor (7) passes through the side wall of the clamp housing (1) and is connected to one end of the second lead screw (8); the other end of the second lead screw (8) is rotatably connected to the inner side wall of the clamp housing (1); a connecting block (9) is provided at the bottom of the positioning plate (2); the second lead screw (8) passes through the connecting block (9); the connecting block (9) is threadedly connected to the second lead screw (8).

2. A mechanical processing fixture according to claim 1, characterized in that: A movable opening is provided on one side of the clamp housing (1); one end of the positioning plate (2) is slidably connected to the movable opening of the clamp housing (1).

3. A mechanical processing fixture according to claim 1, characterized in that: A sliding opening (6) is provided on one side inner wall of the clamp housing (1); the sliding opening (6) is connected to the inner cavity of the clamp housing (1); the first lead screw (4) is arranged in the sliding opening (6); the first lead screw (4) is rotatably connected to one side wall of the sliding opening (6) at one end away from the first motor (5).

4. A mechanical processing fixture according to claim 1, characterized in that: The cross section of the positioning plate (2) is L-shaped.

5. The mechanical processing fixture according to claim 1, characterized in that: A limit plate (10) and a support plate (11) are provided in the inner cavity of the clamp housing (1); the limit plate (10) is arranged on the side wall of the clamp housing (1); the support plate (11) is arranged at the bottom of the inner cavity of the clamp housing (1); the top surface of the support plate (11) is flush with the top surface of the limit plate (10); the bottom surface of the positioning plate (2) abuts against the top surface of the support plate (11) and the top surface of the limit plate (10); the side wall of the connecting block (9) abuts against the side wall of the limit plate (10).

6. A mechanical processing fixture according to claim 1, characterized in that: The bottom surface of the positioning plate (2) is also provided with a guide block (12); a guide rod (13) is provided in the inner cavity of the clamp housing (1); the two ends of the guide rod (13) are respectively connected to a group of opposite side walls of the inner cavity of the clamp housing (1); the guide block (12) is slidably connected to the guide rod (13); the sliding direction of the guide block (12) is consistent with the moving direction of the connecting block (9).

7. A mechanical processing fixture according to claim 1, characterized in that: A limiting groove (14) is provided at the connection between the inner cavity of the clamp housing (1) and the second lead screw (8); the end of the second lead screw (8) away from the second motor (7) is rotatably connected to the limiting groove (14).

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