Rapid workpiece positioning clamp of precision engraving machine

Abstract

The utility model relates to the technical field of engraving machines, in particular to a rapid workpiece positioning clamp of a precision engraving machine. The number of the pulling blocks is four, the pulling blocks are distributed on the upper side of the lower base in a rectangular structure, moving blocks are arranged on the upper sides of the pulling blocks, and the upper sides of the moving blocks penetrate through sliding grooves formed in the upper base in a sliding mode and then are connected with the clamping plates. The four guide blocks are fixedly arranged on the outer sides of the pulling blocks correspondingly, and the guide blocks are arranged on the lower base in a sliding mode through sliding pairs. The two rotating gears are symmetrically arranged on the upper side of the lower base in the left-right direction, rotating shafts penetrate through and are fixed to the interiors of the rotating gears, and the bottom ends of the rotating shafts are rotationally connected to the lower base through bearings; the synchronous driving assembly is arranged between the left rotating gear and the right rotating gear. The two synchronous transmission assemblies are arranged on the outer sides of the rotating gears correspondingly. And the clamping plates on the front side and the rear side are synchronously pushed to push a workpiece to be arranged over the upper seat, so that the workpiece is clamped.

Description

Technical Field

[0001] This utility model relates to the field of engraving machine technology, specifically to a precision engraving machine workpiece quick positioning fixture. Background Technology

[0002] Precision engraving machines (such as CNC engraving machines, laser engraving machines, precision milling machines, etc.) are widely used in mold manufacturing, precision parts processing, electronic product processing, arts and crafts production, sign and nameplate production, medical device manufacturing and other fields. In the precision engraving process, stable workpiece clamping is the key to achieving high-efficiency and high-quality processing. Most existing fixtures are vises, which can achieve the purpose of clamping, but manual operation is not only time-consuming, but also makes it difficult to guarantee consistent positioning accuracy in batch processing. Utility Model Content

[0003] The purpose of this utility model is to address the shortcomings and deficiencies of the existing technology by providing a precision engraving machine workpiece quick positioning fixture with a simple structure, reasonable design, and convenient use. By synchronously pushing the clamping plates on the front and rear sides, the workpiece is pushed to be placed directly above the upper seat for clamping operation.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: it includes a lower seat and an upper seat, the upper seat being disposed on the upper side of the lower seat; clamping plates are disposed on the upper side of the upper seat in a front-to-back manner;

[0005] It also includes: four pull blocks, each arranged in a rectangular structure on the upper side of the lower base, with a movable block on the upper side of each pull block. The upper side of the movable block slides through a sliding groove in the upper base and connects to the clamping plate; four guide blocks, each fixedly arranged on the outer side of the pull blocks, and slidably mounted on the lower base via a sliding pair; two rotating gears, symmetrically arranged on the upper side of the lower base, with a rotating shaft passing through and fixed inside each gear, the bottom end of which is screwed onto the lower base via a bearing; a synchronous drive assembly, arranged between the two rotating gears; and two synchronous transmission assemblies, each arranged on the outer side of the rotating gears.

[0006] Through the above technical solution design, the synchronous drive component drives the two left and right rotating gears to rotate synchronously, and the synchronous transmission component moves the corresponding pulling block, thereby moving the clamping plate.

[0007] As a further improvement of this utility model, the synchronous drive assembly includes: a "U"-shaped block, which is slidably mounted on the lower base via a sliding pair, and racks are provided on both the left and right sides of the "U"-shaped block, with the racks meshing with adjacent rotating gears; a drive motor, which is fixedly mounted on the lower base via a motor bracket, and is located on the front side of the "U"-shaped block, with a threaded rod provided on the output end of the drive motor; and a threaded tube, which is threadedly screwed onto the threaded rod, with the rear end of the threaded tube connected to the inner wall of the "U"-shaped block.

[0008] The above technical solution design starts the drive motor, causing the threaded rod to rotate and drive the threaded tube, thereby driving the "U"-shaped block and synchronously driving the rotating gears on both sides.

[0009] As a further improvement of this utility model, the synchronous transmission assembly includes: a transmission gear, which is meshed on the outside of the rotating gear, and a transmission shaft is inserted and fixed inside the transmission gear, with the bottom end of the transmission shaft screwed onto the lower base via a bearing; a synchronous shaft, which is located on the front side of the transmission shaft, with the bottom end of the synchronous shaft screwed onto the lower base via a bearing; two synchronous gears, which are respectively sleeved and fixed on the corresponding transmission shaft and synchronous shaft, and are located on the upper side of the transmission gear, with the two synchronous gears on the same side meshing; and two rotating components, which are respectively sleeved and fixed on the transmission shaft and synchronous shaft, and are located on the upper side of the synchronous gear, with a groove inside the rotating component; the rotating component is in contact with the upper side of the pulling block, and a guide plate slides through the groove, with the guide plate fixedly mounted on the pulling block.

[0010] Through the above technical solution design, the rotating gear rotates to mesh with the transmission gear, causing the transmission shaft to drive the synchronous gear on it to rotate, which in turn meshes with and drives the synchronous gear on the front synchronous shaft to rotate, so that the two rotating parts rotate relative to each other, thereby pulling the pulling block.

[0011] As a further improvement of this utility model, mounting blocks are fixedly provided on both the left and right sides of the lower seat, and the upper seat is snapped onto the mounting blocks; the positioning block passes through the side wall of the upper seat and is inserted into the mounting block.

[0012] The above technical solution is used to guide and position the upper seat during installation.

[0013] As a further improvement of this utility model, the upper side of the mounting block is provided with a groove, and a hydraulic rod is fixedly installed in the groove. The pushing end of the hydraulic rod passes through the mounting block and is inserted into the positioning block.

[0014] The above technical solution design enhances the stability of the positioning block.

[0015] As a further improvement of this utility model, the rotating gear is provided with insert rods on both the front and rear sides, and the insert rods are fixedly mounted on the lower seat; the upper seat is fixedly provided with insert pins corresponding to the insert rods, and the insert pins are sleeved on the insert rods.

[0016] The above technical solution design guides the installation of the upper seat.

[0017] The working principle of this utility model is as follows: The upper seat is installed on the lower seat, and is guided by the insertion of the insert pin and the insert rod, as well as the guide of the mounting block. Then, the positioning block is inserted into the upper seat and the mounting block, and the positioning block is fixed by inserting the hydraulic rod downward into the positioning block. A sliding groove is set in the upper seat. When the drive motor is started, the threaded rod rotates to drive the threaded tube, thereby driving the "U"-shaped block and synchronously driving the rotating gears on both sides. The rotation of the rotating gears meshes with the transmission gear, causing the transmission shaft to drive the synchronous gear on it to rotate, which in turn meshes with the synchronous gear on the front synchronous shaft, causing the two rotating parts to rotate relative to each other, thereby pulling the pulling block. The moving block moves in the sliding groove, thereby driving the clamping plate to move, thereby clamping the workpiece.

[0018] Compared with the prior art, the beneficial effects of this utility model are:

[0019] 1. Driving the "U"-shaped block to move will engage and drive the rotating gears on the left and right sides to rotate simultaneously in opposite directions, thereby driving the transmission gears and making the rotation directions of the transmission shafts on both sides opposite; through the transmission setting of the synchronous gear, the rotation directions of two adjacent rotating parts are made to be opposite.

[0020] 2. The two rotating parts on the left and right rotate, and the clamping plate moves by synchronously pulling the two pulling blocks and sliding the moving block with the sliding groove.

[0021] 3. The front and rear clamps move towards the workpiece simultaneously to clamp and limit the workpiece. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of this utility model.

[0023] Figure 2 This is a schematic diagram of the structure of the lower base in this utility model.

[0024] Figure 3 This is a schematic diagram of the synchronous drive component in this utility model.

[0025] Figure 4 This is a schematic diagram of the synchronous transmission component in this utility model.

[0026] Figure 5 This is a schematic diagram of the connection structure of the positioning block and the mounting block in this utility model.

[0027] Explanation of reference numerals in the attached figures:

[0028] Lower seat 1, Upper seat 2, Sliding groove 2-1, Clamping plate 3, Pulling block 4, Moving block 5, Guide block 6, Rotating gear 7, Synchronous drive assembly 8, "U" shaped block 8-1, Drive motor 8-2, Threaded rod 8-3, Threaded pipe 8-4, Synchronous transmission assembly 9, Transmission gear 9-1, Transmission shaft 9-2, Synchronous shaft 9-3, Synchronous gear 9-4, Rotating component 9-5, Groove 9-6, Guide table 9-7, Mounting block 10, Groove 10-1, Positioning block 11, Hydraulic rod 12, Insert rod 13, Insert post 14. Detailed Implementation

[0029] The technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. The preferred embodiments described are only examples. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. Example 1

[0030] Please see Figures 1-5 This embodiment includes a lower seat 1 and an upper seat 2, with the upper seat 2 positioned above the lower seat 1; a clamping plate 3 is arranged opposite to the front and back of the upper side of the upper seat 2; it also includes:

[0031] Pulling blocks 4, there are four of them, which are arranged in a rectangular structure on the upper side of the lower seat 1. A moving block 5 is provided on the upper side of the pulling block 4. The upper side of the moving block 5 slides through the sliding groove 2-1 opened in the upper seat 2 and is connected to the clamping plate 3.

[0032] Guide blocks 6, there are four guide blocks 6, which are fixedly set on the outside of the pull block 4 respectively, and the guide blocks 6 are slidably set on the lower seat 1 through the sliding pair;

[0033] Two rotating gears 7 are symmetrically arranged on the upper side of the lower base 1, and a rotating shaft is inserted and fixed inside the rotating gear 7. The bottom end of the rotating shaft is screwed onto the lower base 1 through a bearing. Insert rods 13 are provided on both the front and rear sides of the rotating gear 7, and the insert rods 13 are fixedly arranged on the lower base 1. Insert pins 14 corresponding to the insert rods 13 are fixedly arranged on the inner top surface of the upper base 2, and the insert pins 14 are sleeved on the insert rods 13.

[0034] Synchronous drive component 8, wherein the synchronous drive component 8 is disposed between the left and right rotating gears 7;

[0035] Synchronous transmission assembly 9, there are two synchronous transmission assemblies 9, which are respectively disposed on the outside of the rotating gear 7;

[0036] Through the above technical solution design, the synchronous drive component 8 drives the two left and right rotating gears 7 to rotate synchronously, and the synchronous transmission component 9 moves the corresponding pulling block 4, thereby moving the clamping plate 3. Example 2

[0037] Please see Figures 1-5 Based on Embodiment 1, the synchronous drive component 8 is further improved and includes:

[0038] The “U”-shaped block 8-1 is slidably mounted on the lower seat 1 via a sliding pair, and racks are provided on both the left and right sides of the “U”-shaped block 8-1, with the racks meshing with the adjacent rotating gear 7.

[0039] The drive motor 8-2 is fixedly mounted on the lower base 1 by a motor bracket. The specific model of the drive motor 8-2 is purchased and installed directly from the market according to the actual usage requirements. The drive motor 8-2 is located on the front side of the "U"-shaped block 8-1, and a threaded rod 8-3 is provided on the output end of the drive motor 8-2.

[0040] Threaded tube 8-4, wherein the threaded tube 8-4 is threadedly fitted onto the threaded rod 8-3, and the rear end of the threaded tube 8-4 is connected to the inner wall of the "U"-shaped block 8-1.

[0041] Through the above technical solution design, the drive motor 8-2 is started, causing the threaded rod 8-3 to rotate and drive the threaded tube 8-4 to drive the "U"-shaped block 8-1, and synchronously drive the rotating gears 7 on both sides. Example 3

[0042] Please see Figures 1-5 Based on Embodiment 1, the synchronous transmission assembly 9 is further improved and includes:

[0043] The transmission gear 9-1 is meshed on the outside of the rotating gear 7, and a transmission shaft 9-2 is inserted and fixed inside the transmission gear 9-1. The bottom end of the transmission shaft 9-2 is screwed onto the lower base through a bearing.

[0044] Synchronous shaft 9-3 is located on the front side of transmission shaft 9-2, and the bottom end of synchronous shaft 9-3 is screwed onto the lower base via a bearing;

[0045] Synchronous gear 9-4, there are two synchronous gears 9-4, which are respectively sleeved and fixed on the corresponding transmission shaft 9-2 and synchronous shaft 9-3, and the synchronous gear 9-4 is set on the upper side of the transmission gear 9-1, and the two synchronous gears 9-4 on the same side are meshed.

[0046] Two rotating components 9-5 are respectively sleeved and fixed on the transmission shaft 9-2 and the synchronous shaft 9-3, and the rotating components 9-5 are located on the upper side of the synchronous gear 9-4. A groove 9-6 is opened in the rotating component 9-5. The rotating component 9-5 is in contact with the upper side of the pulling block 4, and a guide 9-7 is slidably passed through the groove 9-6. The guide 9-7 is fixedly set on the pulling block 4.

[0047] Through the above technical solution design, the rotating gear 7 rotates to mesh with the transmission gear 9-1, causing the transmission shaft 9-2 to drive the synchronous gear 9-4 on it to rotate, which in turn meshes with and drives the synchronous gear 9-4 on the front synchronous shaft 9-3 to rotate, so that the two rotating parts 9-5 rotate relative to each other, thereby pulling the pulling block 4. Example 4

[0048] Please see Figures 1-5 Based on Embodiment 1, further improvements are made: mounting blocks 10 are fixedly provided on both the left and right sides of the lower seat 1, and the upper seat 2 is snapped onto the mounting blocks 10; the positioning block 11 passes through the side wall of the upper seat 2 and is inserted into the mounting block 10; a groove 10-1 is opened on the upper side of the mounting block 10, and a hydraulic rod 12 is fixedly provided in the groove 10-1. The pushing end of the hydraulic rod 12 passes through the mounting block 10 and is inserted into the positioning block 11.

[0049] The above technical solution design strengthens the fixation between the upper seat 2 and the mounting block 10.

[0050] When using this utility model, the upper seat 2 is installed on the lower seat 1, and the upper seat 2 is guided by the insertion of the insert post 14 and the insert rod 13, and the guide of the mounting block 10. Then, the positioning block 11 is inserted into the upper seat 2 and the mounting block 10, and the positioning block 11 is fixed by the downward insertion of the hydraulic rod 12 into the positioning block 11. A sliding groove 2-1 is set in the upper seat 2. The drive motor 8-2 is started, so that the threaded rod 8-3 rotates to drive the threaded tube 8-4, thereby driving the "U"-shaped block 8-1 and synchronously driving the rotating gears 7 on both sides. The rotating gears 7 rotate to mesh with the transmission gear 9-1, so that the transmission shaft 9-2 drives the synchronous gear 9-4 on it to rotate, thereby meshing and driving the synchronous gear 9-4 on the front synchronous shaft 9-3 to rotate, so that the two rotating parts 9-5 rotate relative to each other, thereby pulling the pulling block 4. The moving block 5 moves in the sliding groove 2-1, thereby driving the clamping plate 3 to move, thereby clamping the workpiece.

[0051] Compared with the prior art, the beneficial effects of this utility model are:

[0052] 1. Driving the "U"-shaped block 8-1 to move will engage and drive the rotating gears 7 on the left and right sides to rotate simultaneously in opposite directions, thereby driving the transmission gear 9-1 and making the rotation directions of the transmission shafts 9-2 on both sides opposite; through the transmission setting of the synchronous gear 9-4, the rotation directions of the two adjacent rotating parts 9-5 are made opposite.

[0053] 2. The two rotating parts 9-5 rotate, and by synchronously pulling the two pulling blocks 4, the clamping plate 3 moves through the sliding engagement of the moving block 5 and the sliding groove 2-1.

[0054] 3. The two clamping plates 3 move towards the workpiece simultaneously to clamp and limit the workpiece.

[0055] For those skilled in the art, modifications can be made to the technical solutions described in the foregoing embodiments, and equivalent substitutions can be made to some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A precision engraving machine workpiece quick positioning fixture, comprising a lower seat (1) and an upper seat (2), the upper seat (2) being disposed on the upper side of the lower seat (1); clamping plates (3) are disposed opposite each other on the upper side of the upper seat (2); characterized in that, It also includes: four pull blocks (4), which are arranged in a rectangular structure on the upper side of the lower seat (1), and a moving block (5) is provided on the upper side of the pull block (4). The upper side of the moving block (5) slides through the sliding groove (2-1) opened in the upper seat (2) and is connected to the clamping plate (3); four guide blocks (6), which are fixedly arranged on the outside of the pull blocks (4), and the guide blocks (6) are slidably arranged on the lower seat (1) through a sliding pair. On the upper side of the lower seat (1), there are two rotating gears (7), which are symmetrically arranged on the left and right sides respectively. A rotating shaft is inserted and fixed inside the rotating gear (7), and the bottom end of the rotating shaft is screwed onto the lower seat (1) through a bearing; a synchronous drive assembly (8), which is arranged between the two rotating gears (7); and a synchronous transmission assembly (9), which is two synchronous transmission assemblies, which are arranged on the outside of the rotating gears (7).

2. The precision engraving machine workpiece quick positioning fixture according to claim 1, characterized in that: The synchronous drive assembly (8) includes: a "U"-shaped block (8-1), which is slidably mounted on the lower seat (1) via a sliding pair, and racks are provided on both the left and right sides of the "U"-shaped block (8-1), with the racks meshing with adjacent rotating gears (7); a drive motor (8-2), which is fixedly mounted on the lower seat (1) via a motor bracket, and is located on the front side of the "U"-shaped block (8-1), with a threaded rod (8-3) on the output end of the drive motor (8-2); and a threaded tube (8-4), which is threadedly fitted onto the threaded rod (8-3), with the rear end of the threaded tube (8-4) connected to the inner wall of the "U"-shaped block (8-1).

3. The precision engraving machine workpiece quick positioning fixture according to claim 1, characterized in that: The synchronous transmission assembly (9) includes: a transmission gear (9-1), which is meshed on the outside of the rotating gear (7), and a transmission shaft (9-2) is inserted and fixed inside the transmission gear (9-1), with the bottom end of the transmission shaft (9-2) screwed onto the lower base via a bearing; a synchronous shaft (9-3), which is located in front of the transmission shaft (9-2), with the bottom end of the synchronous shaft (9-3) screwed onto the lower base via a bearing; and two synchronous gears (9-4), which are respectively sleeved and fixed onto the corresponding transmission shaft (9-2) and synchronous shaft. (9-3) and the synchronous gear (9-4) is set on the upper side of the transmission gear (9-1), and the two synchronous gears (9-4) on the same side mesh with each other; rotating part (9-5), there are two rotating parts (9-5), which are respectively sleeved and fixed on the transmission shaft (9-2) and the synchronous shaft (9-3), and the rotating part (9-5) is set on the upper side of the synchronous gear (9-4), and a groove (9-6) is opened in the rotating part (9-5); the rotating part (9-5) is in contact with the upper side of the pulling block (4), and a guide (9-7) slides through the groove (9-6), and the guide (9-7) is fixedly set on the pulling block (4).

4. The precision engraving machine workpiece quick positioning fixture according to claim 1, characterized in that: The lower seat (1) is fixedly provided with mounting blocks (10) on both the left and right sides, and the upper seat (2) is locked on the mounting blocks (10); the positioning block (11) passes through the side wall of the upper seat (2) and is inserted into the mounting block (10).

5. A precision engraving machine workpiece quick positioning fixture according to claim 4, characterized in that: The mounting block (10) has a groove (10-1) on its upper side, and a hydraulic rod (12) is fixedly installed in the groove (10-1). The pushing end of the hydraulic rod (12) passes through the mounting block (10) and is inserted into the positioning block (11).

6. The precision engraving machine workpiece quick positioning fixture according to claim 1, characterized in that: The rotating gear (7) is provided with insert rods (13) on both the front and rear sides, and the insert rods (13) are fixedly installed on the lower seat (1); the upper seat (2) is fixedly provided with insert posts (14) corresponding to the insert rods (13) on its inner top surface, and the insert posts (14) are sleeved on the insert rods (13).

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