Gear rack centering and straightening device

Abstract

The utility model relates to the technical field of automatic assembly, in particular to a gear rack centering and straightening device which comprises a base, side plates and a top plate, the two side plates are fixedly installed on the two sides of the upper portion of the base, a gear transmission rack straightening structure is arranged on the upper portion of the base, and the gear transmission rack straightening structure comprises a motor, a supporting plate and a guide groove. The motor is fixedly installed above the base, and an output shaft of the motor is fixedly connected with a transmission rod. According to the gear and rack centering and straightening device, a transmission rod is driven by a motor to rotate, in this way, the rotating gear can drive racks on the two sides to slide in opposite directions in a guide groove, connecting rods can be pulled to slide left and right on the inner side of a sliding groove, and in this way, the two connecting rods sliding oppositely can pull a top end translation block to move transversely; when the gear rack centering and straightening device is used, the two straightening rods moving relatively can center and straighten the position of a machined part, the centering and straightening effect can be automatically achieved without manual observation, and the using effect of the gear rack centering and straightening device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of automatic assembly, in particular to a gear rack centering and aligning device. Background Art

[0002] When some existing mechanical products are being processed, the workpieces need to be fixed and clamped before various operations can be performed. However, the position of the fixed workpieces may be tilted or deviated due to problems with manual placement. Therefore, a mechanical structure is needed to adjust and center the fixed workpieces to facilitate subsequent processing.

[0003] For example, the authorization announcement number "CN117001304A" is named a gear rack workpiece centering positioning mechanism. Although the positioning speeds in the four directions move toward the middle when the cylinder is pushed out, the centering position can be adjusted within a certain range by adjusting the limit screws on the limit block to achieve accurate centering of the workpiece. However, the existing gear rack workpiece centering positioning mechanism requires the cylinder to drive the saw teeth to slide in actual use, thereby driving the gear to rotate. However, after the workpiece is fixed inside the positioning block, the rack slides a certain distance and drives the workpiece to swing a certain amplitude. Since the sliding distance of the rack can only be adjusted little by little by manually starting the cylinder to push the distance, it not only takes longer time, but also the final centering position lacks a reference standard, which is extremely prone to errors. Therefore, the actual use effect of the existing gear rack workpiece centering positioning mechanism is not ideal.

[0004] At the same time, the existing gear rack workpiece centering positioning mechanism, when fixing the workpiece, only relies on the slider that squeezes and slides inward on the inner side of the slide slot to achieve the clamping operation, but the slider will move back and forth inside the slide slot, and when the workpiece is driven to rotate by the lower end gear, the top fixed plate will generate centrifugal force to rotate outward, so that the slider will move outward along both sides of the slide slot. Therefore, the clamping force of the positioning block on the workpiece is limited, making the workpiece in the centering process easily thrown off, so the fixing effect of the gear rack workpiece centering positioning mechanism is insufficient. Utility Model Content

[0005] The utility model aims to solve the problem that the centering positioning mechanism of the gear rack for the workpiece has poor use effect and general fixing effect, and proposes a gear rack centering and aligning device.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a gear rack centering and aligning device, comprising a base, a side plate and a top plate, the two side plates are fixedly mounted on both sides above the base, a gear transmission rack aligning structure is provided above the base, the gear transmission rack aligning structure comprises a motor, a support plate and a guide groove, the motor is fixedly mounted above the base, the output shaft of the motor is fixedly connected with a transmission rod, the support plate is fixedly mounted inside the two side plates, the transmission rod is rotatably connected to the inner side of the support plate through a bearing, a gear is fixedly mounted on the top of the transmission rod, the two guide grooves are fixedly connected to the inner wall of the side plate, the inner sides of the two guide grooves are slidably clamped with racks, and the inner sides of the two racks are meshed and connected with the edges of the gears.

[0007] Preferably, a processing part centering and aligning structure is provided above the top plate;

[0008] The workpiece centering and alignment structure comprises a slide groove, an alignment rod and an alignment seat;

[0009] The two slide grooves are fixedly opened on both sides of the interior of the top plate, the inner sides of the two slide grooves are slidably connected to two connecting rods, the top ends of the two connecting rods are fixedly installed with translation blocks, the two straightening rods are fixedly installed on the inner walls of the translation blocks, and the straightening seat is rotatably installed on the inner side of the top end of the top plate.

[0010] Preferably, the bottom ends of the two connecting rods are fixedly connected to the middle of the top ends of the two racks, and the two straightening rods are arranged relatively parallel along the slide groove.

[0011] Preferably, a workpiece clamping structure is provided above the straightening seat;

[0012] The workpiece clamping structure comprises a fixing plate, a sliding rod and a clamping sheet;

[0013] The fixing plate is fixedly installed on the top of the straightening seat, two sliding rods are slidably connected to the inner sides of the fixing plate, two bolts are threadedly connected to the outer wall of the fixing plate, the ends of the two bolts are tightly pressed against the outer walls of the sliding rods, an anti-slip layer is fixedly installed on the top of the fixing plate, and two clamping plates are fixedly connected to the outer sides of the two sliding rods.

[0014] Preferably, the top of the anti-slip layer is movably connected to a workpiece, the inner sides of the two clamping plates are movably connected to the outer wall of the workpiece, and the inner sides of the two straightening rods are movably connected to the front and rear ends of the workpiece.

[0015] Preferably, the lower part of the top plate is parallel to the support plate, the two racks are arranged relatively parallel to each other, and the lower end of the support plate is parallel to the base.

[0016] The utility model proposes a gear rack centering and aligning device, which has the beneficial effect of: the transmission rod is driven to rotate by a motor, so that the rotating gear will drive the racks on both sides to slide in opposite directions inside the guide groove, which will pull the connecting rod to slide left and right inside the slide groove, so that the two relatively sliding connecting rods will pull the top translation block to move horizontally, and the two relatively moving alignment rods will center and align the position of the workpiece, and the centering and aligning effect can be automatically achieved without manual observation, thereby improving the use effect of the gear rack centering and aligning device.

[0017] By placing the workpiece on the anti-slip layer, and then pushing the clamping plates at both ends toward the outer wall of the workpiece, the slide rod will slide inward inside the fixed plate, and then the bolt will be screwed into the outer wall of the fixed plate. The end of the bolt will be pressed against the fixed plate and the slide rod, and the clamping plates on both sides will be fixed. This uses a stable and firm clamping method to avoid the workpiece from falling off or deviating during the rotation and centering process, thereby improving the fixing effect of the gear rack centering device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional schematic diagram of the utility model;

[0019] Figure 2 for Figure 1 A front cross-sectional schematic diagram of

[0020] Figure 3 for Figure 1 A schematic top view of the top surface;

[0021] Figure 4 for Figure 2 Enlarged cross-sectional view of part A in the middle;

[0022] Figure 5 for Figure 2 Enlarged cross-sectional view of part B in the middle;

[0023] Figure 6 for Figure 2 Enlarged cross-sectional view of part C.

[0024] In the figure: 1. base, 2. side plate, 3. top plate, 4. workpiece, 5. gear transmission rack alignment structure, 51. motor, 52. support plate, 53. transmission rod, 54. gear, 55. rack, 56. guide groove, 6. workpiece centering alignment structure, 61. slide groove, 62. connecting rod, 63. translation block, 64. alignment rod, 65. alignment seat, 7. workpiece clamping structure, 71. fixing plate, 72. sliding rod, 73. bolt, 74. anti-slip layer, 75. clamping plate. DETAILED DESCRIPTION

[0025] The utility model is further described below in conjunction with the accompanying drawings:

[0026] See also Figure 1-6 A gear rack centering device comprises a base 1, a side plate 2 and a top plate 3. The two side plates 2 are fixedly mounted on both sides above the base 1. A gear transmission rack centering structure 5 is arranged above the base 1. The gear transmission rack centering structure 5 comprises a motor 51, a support plate 52 and a guide groove 56. The motor 51 is fixedly mounted above the base 1. When selecting the motor 51, a motor model that meets the use requirements can be selected. The output shaft of the motor 51 is fixedly connected with a transmission rod 53. The support plate 52 is fixedly mounted inside the two side plates 2. The transmission rod 53 The support plate 52 is connected to the inner side of the support plate 52 through a bearing, and the support plate 52 is used to support the rotation of the transmission rod 53. A gear 54 is fixedly installed on the top of the transmission rod 53. When the workpiece needs to be centered, the power supply is connected to start the motor 51. The motor 51 will drive the transmission rod 53 to rotate through the output shaft, and then the top of the transmission rod 53 will drive the gear 54 to rotate. In this way, the rotating gear 54 will drive the racks 55 on both sides to slide in opposite directions inside the guide groove 56. The two guide grooves 56 are fixedly connected to the inner wall of the side plate 2. The guide grooves 56 are used to align the gears. The sliding track of the rack 55 is limited, the inner sides of the two guide grooves 56 are slidably connected with the racks 55, and the inner sides of the two racks 55 are meshed with the edges of the gears 54. A processing part centering and aligning structure 6 is provided above the top plate 3. The processing part centering and aligning structure 6 includes a slide 61, an alignment rod 64 and an alignment seat 65. The two slides 61 are fixedly opened on both sides of the inside of the top plate 3. The inner sides of the two slides 61 are slidably connected with two connecting rods 62. The alignment seat 65 will rotate above the top plate 3 through the bearing. When the two racks 55 slide in the opposite direction, they will pull The connecting rod 62 slides left and right inside the slide groove 61, so that the two relatively sliding connecting rods 62 will pull the top translation block 63 to move horizontally. At this time, the translation block 63 will clamp the inner workpiece 4 left and right through the relative alignment rods 64. The two relatively moving alignment rods 64 will center the workpiece position and straighten it. The centering effect can be automatically achieved without manual observation. The tops of the two connecting rods 62 are fixedly installed with translation blocks 63, and the two alignment rods 64 are fixedly installed on the inner wall of the translation block 63. The alignment seat 65 is rotatably installed on the inner side of the top of the top plate 3.

[0027] The support plate 52 is used to support the rotation of the transmission rod 53. When it is necessary to center the workpiece, the power supply is connected to start the motor 51. The motor 51 will drive the transmission rod 53 to rotate through the output shaft, and then the top of the transmission rod 53 will drive the gear 54 to rotate. The rotating gear 54 will drive the racks 55 on both sides to slide in opposite directions inside the guide groove 56. The guide groove 56 is used to limit the sliding trajectory of the rack 55. The alignment seat 65 will rotate above the top plate 3 through the bearing. When the two racks 55 slide in the opposite direction, they will pull the connecting rod 62 to slide left and right inside the slide groove 61. In this way, the two relatively sliding connecting rods 62 will pull the top translation block 63 to move horizontally. At this time, the translation block 63 will clamp the inner workpiece 4 left and right through the relative alignment rods 64, and the two relatively moving alignment rods 64 will center the workpiece position. The centering effect can be automatically achieved without manual observation, thereby improving the use effect of the gear rack centering device.

[0028] See also Figure 1-6 A workpiece clamping structure 7 is provided above the squaring seat 65. The workpiece clamping structure 7 includes a fixing plate 71, a sliding rod 72 and a clamping piece 75. The fixing plate 71 is fixedly installed on the top of the squaring seat 65. Two sliding rods 72 are slidably connected on both sides of the interior of the fixing plate 71. The two sliding rods 72 can slide back and forth on both sides of the interior of the fixing plate 71. Two bolts 73 are threadedly connected to the outer wall of the fixing plate 71. The ends of the two bolts 73 are tightly pressed against the outer wall of the sliding rod 72. An anti-skid layer 74 is fixedly installed on the top of the fixing plate 71. The anti-skid layer 74 is made of a rubber material with a certain texture to improve the friction between the workpiece 4 and the fixing plate 71. The outer wall of the two sliding rods 72 The two clamping pieces 75 are fixedly connected on the side. When fixing the workpiece 4, the workpiece 4 is placed on the anti-skid layer 74, and then the clamping pieces 75 at both ends are pushed toward the outer wall of the workpiece 4. At this time, the slide bar 72 will slide inwardly inside the fixing plate 71 until the clamping piece 75 fixes the outer wall of the workpiece 4. Then, the bolt 73 is screwed into the inner part of the outer wall of the fixing plate 71, and the end of the bolt 73 is pressed between the fixing plate 71 and the slide bar 72. The clamping pieces 75 on both sides will be fixed, and the top of the anti-skid layer 74 is movably connected with the workpiece 4. The inner sides of the two clamping pieces 75 are movably connected with the outer wall of the workpiece 4, and the inner sides of the two squaring rods 64 are movably connected with the front and rear ends of the workpiece 4.

[0029] The anti-skid layer 74 is made of a rubber material with a certain texture. When fixing the workpiece 4, the workpiece 4 is placed on the anti-skid layer 74, and then the clamping pieces 75 at both ends are pushed close to the outer wall of the workpiece 4. At this time, the slide rod 72 will slide inward inside the fixing plate 71 until the clamping piece 75 fixes the outer wall of the workpiece 4, and then the bolt 73 is screwed into the outer wall of the fixing plate 71. The end of the bolt 73 is pressed against between the fixing plate 71 and the slide rod 72, and the clamping pieces 75 on both sides are fixed. A stable and firm clamping method is used to avoid the situation where the workpiece is easily dropped or deviated during the rotation and centering process, thereby improving the fixing effect of the gear rack centering device.

[0030] See also Figure 1-6 The bottom ends of the two connecting rods 62 are fixedly connected to the middle of the top ends of the two racks 55, the two straightening rods 64 are relatively parallel along the slide groove, the bottom of the top plate 3 is parallel to the support plate 52, the two racks 55 are relatively parallel, and the lower end of the support plate 52 is parallel to the base 1.

[0031] Working principle:

[0032] To use the gear rack transmission method to perform the centering and aligning operation of the workpiece, first place the workpiece (gear rack raw material) on the top of the aligning seat 65, and use the anti-skid layer 74 made of a rubber material with a certain texture to increase the friction between the workpiece 4 and the fixed plate 71. When fixing the workpiece 4, place the workpiece 4 on the anti-skid layer 74, and then push the clamping pieces 75 at both ends to the outer wall of the workpiece 4. At this time, the slide rod 72 will slide inward inside the fixed plate 71 until the clamping piece 75 fixes the outer wall of the workpiece 4, and then screw the bolt 73 into the inner part of the outer wall of the fixed plate 71, and the end of the bolt 73 will press between the fixed plate 71 and the slide rod 72, and the clamping pieces 75 on both sides will be fixed;

[0033] Then the support plate 52 is used to support the rotation of the transmission rod 53. When the workpiece needs to be centered and aligned, the power supply is connected to start the motor 51. The motor 51 will drive the transmission rod 53 to rotate through the output shaft, and then the top of the transmission rod 53 will drive the gear 54 to rotate. The rotating gear 54 will drive the racks 55 on both sides to slide in opposite directions inside the guide groove 56. The guide groove 56 is used to limit the sliding trajectory of the rack 55. The alignment seat 65 will rotate above the top plate 3 through the bearing. When the two racks 55 slide in the opposite direction, they will pull the connecting rod 62 to slide left and right inside the slide groove 61. In this way, the two relatively sliding connecting rods 62 will pull the top translation block 63 to move horizontally. At this time, the translation block 63 will clamp the inner workpiece 4 left and right through the relative alignment rods 64, and the two relatively moving alignment rods 64 will center the workpiece position.

[0034] Although the present invention has been shown and described with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein within the scope of the claims.

Claims

1. A gear rack centering device, comprising a base (1), a side plate (2) and a top plate (3), characterized in that: The two side plates (2) are fixedly mounted on both sides above the base (1); a gear transmission rack alignment structure (5) is provided above the base (1); the gear transmission rack alignment structure (5) comprises a motor (51), a support plate (52) and a guide groove (56); the motor (51) is fixedly mounted above the base (1); the output shaft of the motor (51) is fixedly connected to a transmission rod (53); the support plate (52) is fixedly mounted inside the two side plates (2); the transmission rod (53) is rotationally connected to the inner side of the support plate (52) through a bearing; a gear (54) is fixedly mounted on the top of the transmission rod (53); the two guide grooves (56) are fixedly connected to the inner wall of the side plate (2); the inner sides of the two guide grooves (56) are slidably engaged with racks (55); the inner sides of the two racks (55) are meshed and connected with the edges of the gears (54).

2. A gear rack centering device according to claim 1, characterized in that: A processing part centering and aligning structure (6) is provided above the top plate (3); The workpiece centering and aligning structure (6) comprises a slide groove (61), an aligning rod (64) and an aligning seat (65); The two slide grooves (61) are fixedly opened on both sides of the interior of the top plate (3); the inner sides of the two slide grooves (61) are slidably connected to two connecting rods (62); the top ends of the two connecting rods (62) are fixedly installed with translation blocks (63); the two alignment rods (64) are fixedly installed on the inner walls of the translation blocks (63); and the alignment seat (65) is rotatably installed on the inner side of the top end of the top plate (3).

3. A gear rack centering device according to claim 2, characterized in that: The bottom ends of the two connecting rods (62) are fixedly connected to the middle of the top ends of the two racks (55), and the two aligning rods (64) are arranged relatively parallel along the slide groove.

4. A gear rack centering device according to claim 3, characterized in that: A workpiece clamping structure (7) is provided above the alignment seat (65); The workpiece clamping structure (7) comprises a fixing plate (71), a sliding rod (72) and a clamping sheet (75); The fixing plate (71) is fixedly mounted on the top of the straightening seat (65), two sliding rods (72) are slidably connected to the inner sides of the fixing plate (71), two bolts (73) are threadedly connected to the outer wall of the fixing plate (71), the ends of the two bolts (73) are tightly abutted against the outer wall of the sliding rod (72), an anti-slip layer (74) is fixedly mounted on the top of the fixing plate (71), and two clamping plates (75) are fixedly connected to the outer sides of the two sliding rods (72).

5. A gear rack centering device according to claim 4, characterized in that: The top of the anti-slip layer (74) is movably connected to the processing piece (4), the inner sides of the two clamping plates (75) are movably connected to the outer wall of the processing piece (4), and the inner sides of the two straightening rods (64) are movably connected to the front and rear ends of the processing piece (4).

6. A gear rack centering device according to claim 1, characterized in that: The lower part of the top plate (3) is parallel to the support plate (52), the two racks (55) are arranged relatively parallel to each other, and the lower end of the support plate (52) is parallel to the base (1).

Images