Multi-station nut machining clamp

Abstract

The utility model discloses a multi-station nut machining clamp which comprises a machining table, an installation cavity is formed in the machining table, a plurality of nut clamps are arranged on the machining table, each nut clamp comprises a base and an installation base, the bases are installed in the installation cavities, the installation bases are installed on the table top of the machining table, and the installation bases are installed on the table top of the machining table. A movable cavity is formed in the base, a connecting rod is arranged in the movable cavity, a driving piece is installed on the base, a connecting block is connected to the driving piece in a driving mode, and the driving piece is used for driving the connecting block to move in a reciprocating mode in the first position and the second position of the movable cavity in the axial direction. According to the nut clamping device, the clamping piece is driven to move in the radial direction of the connecting rod in a reciprocating mode, so that the clamping piece is driven to be switched between the clamping state and the loosening state, the effect of clamping a to-be-machined nut for machining is achieved, and the nut clamping device is simple in structure, lower in machining precision requirement and lower in cost.

Description

Technical Field

[0001] The utility model relates to the technical field of nut processing devices, and particularly relates to a multi-station nut processing fixture. Background Art

[0002] Nuts are commonly used spare parts. Usually, when processing, it is necessary to clamp the workpiece to be processed first, and then mill the plane with a milling cutter.

[0003] After retrieval, the nut drilling fixture provided by the Chinese invention patent (publication number: CN104493254A) includes a support plate, a positioning sleeve, a drill template and a connecting rod; the support plate plays a role in supporting the positioning sleeve and the workpiece. The positioning sleeve radially positions the workpiece. When the drill bit drills a hole, the drill template plays a guiding role. The connecting rod plays a role in connecting the first locking nut to press the workpiece, and the first locking nut axially positions the workpiece. The second locking nut axially positions the drill template to prevent the drill template from rotating when the drill bit passes through the drill sleeve. The first sleeve of the positioning sleeve radially positions the workpiece with a smaller inner hole, and the second sleeve radially positions the workpiece with a larger inner hole. The positioning block exerts an extrusion effect on the workpiece, increasing the stress area of the workpiece and preventing the first locking nut from concentrating the force on the workpiece and damaging the workpiece.

[0004] The beneficial effects of the above prior art are as follows: When drilling a nut with a smaller inner hole, first install the positioning sleeve on the support plate in a normal position, that is, the second sleeve is located in the first round hole. Then overlap and sleeve the two nuts to be drilled on the first sleeve, and there is a clearance fit between the first sleeve and the nut to be drilled. Sleeve the positioning block on the connecting rod, and finally sleeve the connecting rod with the first locking nut. The first locking nut presses the positioning block, and the positioning block presses the nut to be drilled, so as to realize the positioning of the nut to be drilled. Adjust the second locking nut so that the drill template can move on the threaded column, adjust the position of the drill template so that the distance between the drill sleeve and the nut to be drilled is 8 mm. Then rotate the second locking nut to position the drill die.

[0005] The clamping of the nut in the above prior art is relatively troublesome, and the structure is complex and the processing accuracy requirement is relatively high. Therefore, the cost is relatively high, and it is not convenient to use. Therefore, it is urgent to improve the above disadvantages. Content of the Utility Model

[0006] The purpose of the utility model is to solve the above problems. The utility model provides a multi-station nut processing fixture, which has the advantages of simpler structure and lower cost.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: comprising a processing table, the processing table having an installation cavity, the processing table being provided with a plurality of nut clamps, the nut clamps comprising a base and a mounting seat, the base being installed in the installation cavity, the mounting seat being installed on the processing table surface, a driving member being installed on the base, a connecting block being drivingly connected to the driving member, the driving member being used to drive the connecting block to reciprocate axially between a first position and a second position in the installation cavity, a connecting rod being connected to the connecting block, a sliding cavity being provided in the mounting seat, a clamping member being slidably provided in the sliding cavity, the clamping member being linked with the connecting rod, and the clamping member moving radially along the connecting rod;

[0008] When the connecting rod is in the first position, the two clamping members are used to clamp the nut to be processed;

[0009] When the connecting rod is at the second position, the two clamping members loosen the nut to be processed.

[0010] Preferably, the upper end of the mounting seat is fixedly connected with a support seat, and the upper end of the support seat is used for placing the nut to be processed.

[0011] Preferably, the sliding cavity comprises a first cavity and a second cavity, the length direction of the second cavity is arranged at an angle with the axis of the connecting rod, the connecting rod is slidably arranged in the first cavity, and the clamping member is slidably arranged in the second cavity.

[0012] Preferably, a fixing plate is provided on the connecting rod, a sliding groove is provided in the clamping member and is arranged radially along the connecting rod, and the fixing plate is slidably matched with the sliding groove.

[0013] Preferably, the connecting block is provided with a through slot in the radial direction, the connecting rod is provided with a clamping joint engaged with the slot, the slot and the clamping joint are arranged in cooperation with each other, and the slot is used to limit the movement of the clamping joint in the axial direction.

[0014] Preferably, a guide groove is provided in the mounting seat, and the connecting rod is slidably disposed in the guide groove.

[0015] Preferably, the clamping members each include a sliding block and a clamping block, the sliding block is slidably disposed in the second cavity, and the clamping block is detachably mounted on an end of the sliding block.

[0016] Preferably, a clamping groove for clamping the nut to be processed is provided at one end of the clamping block, and the clamping groove is matched with a clamping portion of the nut to be processed.

[0017] Preferably, a plurality of hanging rings are installed on the processing table.

[0018] Preferably, the driving member is a cylinder or an oil cylinder.

[0019] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0020] A multi-station nut processing fixture provided by the present utility model drives a connecting rod to reciprocate between a first position and a second position through a driving member, and then drives a clamping member to reciprocate radially along the connecting rod, so as to drive the clamping member to switch between two states of clamping and loosening, thereby realizing the function of clamping a nut to be processed for processing. The structure of the present application is simple, and the requirement for processing accuracy is lower, so the cost is lower. Description of the Drawings

[0021] Figure 1 is a three-dimensional structural schematic diagram of the present utility model;

[0022] Figure 2 is a three-dimensional structural schematic diagram of a single fixture of the present utility model;

[0023] Figure 3 is a cross-sectional structural schematic diagram of a single fixture of the present utility model.

[0024] Description of the Drawings: 1. Processing table; 10. Pull ring; 2. Nut fixture; 20. Base; 21. Driving member; 22. Connecting block; 221. Card slot; 23. Connecting rod; 231. Card joint; 232. Fixed plate; 24. Mounting seat; 240. Activity cavity; 2401. First cavity; 2402. Second cavity; 2403. Guide cavity; 25. Support seat; 26. Clamping member; 261. Movable block; 262. Clamping block; 263. Clamping groove; 3. Nut. Detailed Embodiments

[0025] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0026] As Figures 1 - 3As shown in the figure, a multi-station nut processing fixture includes a processing table 1. The processing table 1 has an installation cavity inside. A number of nut fixtures 2 are provided on the processing table 1. The nut fixture 2 includes a base 20 and a mounting seat 24. The base 20 is installed in the installation cavity, and the mounting seat 24 is installed on the tabletop of the processing table 1. A driving member 21 is installed on the base 20. A connecting block 22 is drivingly connected to the driving member 21. The driving member 21 is used to drive the connecting block 22 to reciprocate along the axial direction between a first position and a second position in the installation cavity. A connecting rod 23 is connected to the connecting block 22. A sliding cavity is provided in the mounting seat 24. A clamping member 26 is slidably provided in the sliding cavity. The clamping member 26 is in linkage cooperation with the connecting rod 23. The clamping member 26 moves radially along the connecting rod 23. Both the connecting rod 23 and the clamping member 26 are slidably fitted in the sliding cavity.

[0027] When the connecting rod 23 is in the first position, the two clamping members 26 are used to clamp the nut 3 to be processed;

[0028] When the connecting rod 23 is in the second position, the two clamping members 26 release the nut 3 to be processed.

[0029] A support seat 25 is fixedly connected to the upper end of the mounting seat 24. The upper end of the support seat 25 is used to place the nut 3 to be processed.

[0030] The driving member 21 is a cylinder or an oil cylinder. In addition to the above two driving members 21, it can also be replaced by any driving member 21 that can realize the axial movement of the connecting rod 23.

[0031] The longitudinal section of the sliding cavity is in the shape of "︺", and the sliding cavity includes a first cavity 2401 and second cavities 2402 symmetrically arranged on both sides of the first cavity 2401. The second cavities 2402 are arranged at an angle with the axis of the connecting rod 23 along the length direction. The second cavities 2402 are cylindrical cavities. The axis of the second cavity 2402 is arranged at an angle with the axis of the connecting rod 23. The connecting rod 23 is slidably arranged in the first cavity 2401, and the clamping member 26 is slidably arranged in the second cavity 2402. Therefore, when the connecting rod 23 moves from the first position to the second position, that is, the connecting rod 23 moves upward, and then drives the clamping member 26 to move obliquely upward along the axis of the second cavity 2402. Therefore, the distance between the clamping members 26 continuously increases, so as to release the nut 3 to be processed. On the contrary, when the connecting rod 23 moves from the second position to the first position, that is, the connecting rod 23 moves downward, and then drives the clamping member 26 to move obliquely downward along the axis of the second cavity 2402. Therefore, the distance between the clamping members 26 continuously decreases, so as to clamp the nut 3 to be processed.

[0032] A fixing plate 232 is provided on the connecting rod 23. A chute is provided in the clamping member 26 and is arranged radially along the connecting rod 23. The fixing plate 232 is in sliding fit with the chute.

[0033] A through slot 221 is provided radially on the connecting block 22. A clamping head 231 is provided on the connecting rod 23 and is in clamping fit with the slot 221. The slot 221 and the clamping head 231 are arranged in cooperation. The slot 221 is used to restrict the movement of the clamping head 231 in the axial direction. In this application, the clamping head 231 and the slot 221 are in a "convex" shape. In addition, any shape that can restrict the movement of the clamping head 231 in the axial direction can be used instead.

[0034] A guiding slot is provided in the mounting seat 24. The connecting rod 23 is slidably arranged in the guiding slot.

[0035] Each clamping member 26 includes a sliding block and a clamping block 262. The sliding block is slidably arranged in the second cavity 2402. The clamping block 262 is detachably mounted at the end of the sliding block. A clamping groove 263 for clamping the nut 3 to be processed is provided at one end of the clamping block 262. The clamping groove 263 is adapted to the clamping portion of the nut 3 to be processed. Different shaped nuts 3 can be clamped and processed by replacing the clamping block 262 with a different shaped clamping groove 263.

[0036] A plurality of hanging rings are installed on the processing table 1. The processing table 1 can be better transferred through the hanging rings.

[0037] When this application is in use: when it is necessary to clamp the nut 3 to be processed, the nut 3 to be processed is placed on the support seat 25. At this time, the driving member 21 is activated, so that the driving member 21 drives the connecting rod 23 to move from the second position to the first position, that is, the connecting rod 23 moves downward. Further, while driving the sliding block to move downward, it moves radially along the connecting rod 23 toward the side close to each other, so that the clamping blocks 262 move toward the side close to each other, and then the clamping blocks 262 clamp the nut 3 to be processed.

[0038] After processing is completed, at this time, the driving member 21 is reversely activated, so that the driving member 21 drives the connecting rod 23 to move from the first position to the second position, that is, the connecting rod 23 moves upward. Further, while driving the sliding block to move upward, it moves radially along the connecting rod 23 toward the side away from each other, so that the clamping blocks 262 move toward the side away from each other, and then the clamping blocks 262 release the clamping of the nut 3, so as to remove the processed nut 3.

[0039] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device.

[0040] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A multi-station nut processing fixture, comprising a processing table (1), wherein the processing table (1) has a mounting cavity, and a plurality of nut fixtures (2) are arranged on the processing table (1), characterized in that: The nut clamp (2) comprises a base (20) and a mounting seat (24), wherein the base (20) is mounted in the mounting cavity, and the mounting seat (24) is mounted on the table top of the processing table (1). A driving member (21) is mounted on the base (20), and a connecting block (22) is drivingly connected to the driving member (21), and the driving member (21) is used to drive the connecting block (22) to reciprocate axially between a first position and a second position in the mounting cavity, and a connecting rod (23) is connected to the connecting block (22). A sliding cavity is provided in the mounting seat (24), and a clamping member (26) is slidingly provided in the sliding cavity, and the clamping member (26) cooperates with the connecting rod (23), and the clamping member (26) moves radially along the connecting rod (23); When the connecting rod (23) is in the first position, the two clamping members (26) are used to clamp the nut (3) to be processed; When the connecting rod (23) is in the second position, the two clamping members (26) loosen the nut (3) to be processed.

2. The multi-station nut processing fixture according to claim 1, characterized in that: The upper end of the mounting seat (24) is fixedly connected to a support seat (25), and the upper end of the support seat (25) is used to place the nut (3) to be processed.

3. The multi-station nut processing fixture according to claim 1, characterized in that: The sliding cavity comprises a first cavity (2401) and a second cavity (2402); the length direction of the second cavity (2402) is set at an angle with the axis of the connecting rod (23); the connecting rod (23) is slidably set in the first cavity (2401), and the clamping member (26) is slidably set in the second cavity (2402).

4. The multi-station nut processing fixture according to claim 3, characterized in that: A fixing plate (232) is provided on the connecting rod (23), a sliding groove is provided in the clamping member (26) and is radially arranged along the connecting rod (23), and the fixing plate (232) is slidably matched with the sliding groove.

5. The multi-station nut processing fixture according to claim 1, characterized in that: The connecting block (22) is provided with a through-going slot (221) in the radial direction, and the connecting rod (23) is provided with a clamping joint (231) which is clamped and matched with the slot (221). The slot (221) and the clamping joint (231) are arranged in a coordinated manner, and the slot (221) is used to limit the movement of the clamping joint (231) in the axial direction.

6. The multi-station nut processing fixture according to claim 5, characterized in that: A guide groove is provided in the mounting seat (24), and the connecting rod (23) is slidably arranged in the guide groove.

7. The multi-station nut processing fixture according to claim 3, characterized in that: The clamping member (26) comprises a sliding block and a clamping block (262), wherein the sliding block is slidably disposed in the second cavity (2402), and the clamping block (262) is detachably mounted on the end of the sliding block.

8. The multi-station nut processing fixture according to claim 7, characterized in that: One end of the clamping block (262) is provided with a clamping groove (263) for clamping the nut (3) to be processed, and the clamping groove (263) is adapted to the clamping portion of the nut (3) to be processed.

9. The multi-station nut processing fixture according to claim 1, characterized in that: A plurality of hanging rings are installed on the processing table (1).

10. The multi-station nut processing fixture according to claim 1, characterized in that: The driving member (21) is a pneumatic cylinder or an oil cylinder.

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